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Troubleshooting • Re: RealVNC stops working on Pi update

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Apologies for the long post, but a ton of diagnostics to report

I started with a working Pi and did an APT FULL-UPGRADE

These are (all) the packages that were to be upgraded

Code:

pi@RPi-JMRI-4GB:~ $ sudo apt list --upgradeableListing... Doneagnostics/stable 0.20 armhf [upgradable from: 0.17]avahi-daemon/stable 0.8-10+deb12u1 armhf [upgradable from: 0.8-10]avahi-utils/stable 0.8-10+deb12u1 armhf [upgradable from: 0.8-10]base-files/stable 12.4+rpi1+deb12u11 armhf [upgradable from: 12.4+rpi1+deb12u8]bsdextrautils/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]bsdutils/stable 1:2.38.1-5+deb12u3 armhf [upgradable from: 1:2.38.1-5+deb12u2]cpp-12/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]cups-pk-helper/stable 0.2.6-1+rpt3 armhf [upgradable from: 0.2.6-1+rpt1]curl/stable 7.88.1-10+rpi1+deb12u12 armhf [upgradable from: 7.88.1-10+rpi1+deb12u8]distro-info-data/stable 0.58+deb12u4 all [upgradable from: 0.58+deb12u3]dns-root-data/stable 2024071801~deb12u1 all [upgradable from: 2024041801~deb12u1]dnsmasq-base/stable 2.90-4~deb12u1 armhf [upgradable from: 2.89-1]eject/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]fdisk/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]ffmpeg/stable 8:5.1.6-0+deb12u1+rpt3 armhf [upgradable from: 8:5.1.6-0+deb12u1+rpt1]firefox/stable 140.0.1-1+rpt1 armhf [upgradable from: 133.0-1+rpt7]firmware-atheros/stable,stable 1:20240709-2~bpo12+1+rpt3 all [upgradable from: 1:20230625-2+rpt3]firmware-brcm80211/stable,stable 1:20240709-2~bpo12+1+rpt3 all [upgradable from: 1:20230625-2+rpt3]firmware-libertas/stable,stable 1:20240709-2~bpo12+1+rpt3 all [upgradable from: 1:20230625-2+rpt3]firmware-misc-nonfree/stable,stable 1:20240709-2~bpo12+1+rpt3 all [upgradable from: 1:20230625-2+rpt3]firmware-realtek/stable,stable 1:20240709-2~bpo12+1+rpt3 all [upgradable from: 1:20230625-2+rpt3]g++-12/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]gcc-12-base/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]gcc-12/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]ghostscript/stable 10.0.0~dfsg-11+deb12u7 armhf [upgradable from: 10.0.0~dfsg-11+deb12u6]gir1.2-gdkpixbuf-2.0/stable 2.42.10+dfsg-1+deb12u2 armhf [upgradable from: 2.42.10+dfsg-1+deb12u1]git-man/stable 1:2.39.5-0+deb12u2 all [upgradable from: 1:2.39.5-0+deb12u1]git/stable 1:2.39.5-0+deb12u2 armhf [upgradable from: 1:2.39.5-0+deb12u1]gstreamer1.0-alsa/stable 1.22.0-3+rpt1+deb12u4 armhf [upgradable from: 1.22.0-3+deb12u3]gstreamer1.0-plugins-bad/stable 1.22.0-4+deb12u6 armhf [upgradable from: 1.22.0-4+deb12u5]gstreamer1.0-plugins-base/stable 1.22.0-3+rpt1+deb12u4 armhf [upgradable from: 1.22.0-3+deb12u3]gstreamer1.0-plugins-good/stable 1.22.0-5+rpt2+deb12u2 armhf [upgradable from: 1.22.0-5+rpt1+deb12u1]gstreamer1.0-x/stable 1.22.0-3+rpt1+deb12u4 armhf [upgradable from: 1.22.0-3+deb12u3]gui-pkinst/stable 0.21 armhf [upgradable from: 0.19]gui-updater/stable 0.6 armhf [upgradable from: 0.4]imagemagick-6-common/stable 8:6.9.11.60+dfsg-1.6+deb12u3 all [upgradable from: 8:6.9.11.60+dfsg-1.6+deb12u2]initramfs-tools-core/stable,stable 0.142+rpt3+deb12u3 all [upgradable from: 0.142+rpt2+deb12u1]initramfs-tools/stable,stable 0.142+rpt3+deb12u3 all [upgradable from: 0.142+rpt2+deb12u1]labwc/stable 0.8.4-1+rpt1 armhf [upgradable from: 0.7.4-1+rpt1]libabsl20220623/stable 20220623.1-1+rpi1+deb12u2 armhf [upgradable from: 20220623.1-1+rpi1]libasan8/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libatomic1/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libavahi-client3/stable 0.8-10+deb12u1 armhf [upgradable from: 0.8-10]libavahi-common-data/stable 0.8-10+deb12u1 armhf [upgradable from: 0.8-10]libavahi-common3/stable 0.8-10+deb12u1 armhf [upgradable from: 0.8-10]libavahi-core7/stable 0.8-10+deb12u1 armhf [upgradable from: 0.8-10]libavahi-glib1/stable 0.8-10+deb12u1 armhf [upgradable from: 0.8-10]libavcodec59/stable 8:5.1.6-0+deb12u1+rpt3 armhf [upgradable from: 8:5.1.6-0+deb12u1+rpt1]libavdevice59/stable 8:5.1.6-0+deb12u1+rpt3 armhf [upgradable from: 8:5.1.6-0+deb12u1+rpt1]libavfilter8/stable 8:5.1.6-0+deb12u1+rpt3 armhf [upgradable from: 8:5.1.6-0+deb12u1+rpt1]libavformat59/stable 8:5.1.6-0+deb12u1+rpt3 armhf [upgradable from: 8:5.1.6-0+deb12u1+rpt1]libavif15/stable 0.11.1-1+deb12u1 armhf [upgradable from: 0.11.1-1]libavutil57/stable 8:5.1.6-0+deb12u1+rpt3 armhf [upgradable from: 8:5.1.6-0+deb12u1+rpt1]libblkid1/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]libblockdev-crypto2/stable 2.28-2+deb12u1 armhf [upgradable from: 2.28-2]libblockdev-fs2/stable 2.28-2+deb12u1 armhf [upgradable from: 2.28-2]libblockdev-loop2/stable 2.28-2+deb12u1 armhf [upgradable from: 2.28-2]libblockdev-part-err2/stable 2.28-2+deb12u1 armhf [upgradable from: 2.28-2]libblockdev-part2/stable 2.28-2+deb12u1 armhf [upgradable from: 2.28-2]libblockdev-swap2/stable 2.28-2+deb12u1 armhf [upgradable from: 2.28-2]libblockdev-utils2/stable 2.28-2+deb12u1 armhf [upgradable from: 2.28-2]libblockdev2/stable 2.28-2+deb12u1 armhf [upgradable from: 2.28-2]libc-bin/stable 2.36-9+rpt2+deb12u12 armhf [upgradable from: 2.36-9+rpt2+deb12u9]libc-dev-bin/stable 2.36-9+rpt2+deb12u12 armhf [upgradable from: 2.36-9+rpt2+deb12u9]libc-devtools/stable 2.36-9+rpt2+deb12u12 armhf [upgradable from: 2.36-9+rpt2+deb12u9]libc-l10n/stable,stable 2.36-9+rpt2+deb12u12 all [upgradable from: 2.36-9+rpt2+deb12u9]libc6-dbg/stable 2.36-9+rpt2+deb12u12 armhf [upgradable from: 2.36-9+rpt2+deb12u9]libc6-dev/stable 2.36-9+rpt2+deb12u12 armhf [upgradable from: 2.36-9+rpt2+deb12u9]libc6/stable 2.36-9+rpt2+deb12u12 armhf [upgradable from: 2.36-9+rpt2+deb12u9]libcamera-apps/stable,stable 1.7.0-1 all [upgradable from: 1.5.3-1]libcamera-ipa/stable 0.5.0+rpt20250429-1 armhf [upgradable from: 0.3.2+rpt20241119-1]libcamera-tools/stable 0.5.0+rpt20250429-1 armhf [upgradable from: 0.3.2+rpt20241119-1]libcap2-bin/stable 1:2.66-4+deb12u1 armhf [upgradable from: 1:2.66-4]libcap2/stable 1:2.66-4+deb12u1 armhf [upgradable from: 1:2.66-4]libcc1-0/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libcurl3-gnutls/stable 7.88.1-10+rpi1+deb12u12 armhf [upgradable from: 7.88.1-10+rpi1+deb12u8]libcurl4/stable 7.88.1-10+rpi1+deb12u12 armhf [upgradable from: 7.88.1-10+rpi1+deb12u8]libdjvulibre-text/stable 3.5.28-2.1~deb12u1 all [upgradable from: 3.5.28-2]libdjvulibre21/stable 3.5.28-2.1~deb12u1 armhf [upgradable from: 3.5.28-2+b1]libebml5/stable 1.4.4-1+deb12u1 armhf [upgradable from: 1.4.4-1]libegl-mesa0/stable 24.2.8-1~bpo12+rpt3 armhf [upgradable from: 23.2.1-1~bpo12+rpt3]libfdisk1/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]libfile-find-rule-perl/stable 0.34-4~deb12u1 all [upgradable from: 0.34-3]libfreetype6/stable 2.12.1+dfsg-5+deb12u4 armhf [upgradable from: 2.12.1+dfsg-5+deb12u3]libgbm1/stable 24.2.8-1~bpo12+rpt3 armhf [upgradable from: 23.2.1-1~bpo12+rpt3]libgcc-12-dev/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libgcc-s1/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libgdk-pixbuf-2.0-0/stable 2.42.10+dfsg-1+deb12u2 armhf [upgradable from: 2.42.10+dfsg-1+deb12u1]libgdk-pixbuf2.0-common/stable 2.42.10+dfsg-1+deb12u2 all [upgradable from: 2.42.10+dfsg-1+deb12u1]libgfortran5/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libgl1-mesa-dev/stable 24.2.8-1~bpo12+rpt3 armhf [upgradable from: 23.2.1-1~bpo12+rpt3]libgl1-mesa-dri/stable 24.2.8-1~bpo12+rpt3 armhf [upgradable from: 23.2.1-1~bpo12+rpt3]libglapi-mesa/stable 24.2.8-1~bpo12+rpt3 armhf [upgradable from: 23.2.1-1~bpo12+rpt3]libglib2.0-0/stable 2.74.6-2+deb12u6 armhf [upgradable from: 2.74.6-2+deb12u4]libglib2.0-bin/stable 2.74.6-2+deb12u6 armhf [upgradable from: 2.74.6-2+deb12u4]libglib2.0-data/stable 2.74.6-2+deb12u6 all [upgradable from: 2.74.6-2+deb12u4]libglx-mesa0/stable 24.2.8-1~bpo12+rpt3 armhf [upgradable from: 23.2.1-1~bpo12+rpt3]libgnutls30/stable 3.7.9-2+deb12u4 armhf [upgradable from: 3.7.9-2+deb12u3]libgomp1/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libgs-common/stable 10.0.0~dfsg-11+deb12u7 all [upgradable from: 10.0.0~dfsg-11+deb12u6]libgs10-common/stable 10.0.0~dfsg-11+deb12u7 all [upgradable from: 10.0.0~dfsg-11+deb12u6]libgs10/stable 10.0.0~dfsg-11+deb12u7 armhf [upgradable from: 10.0.0~dfsg-11+deb12u6]libgssapi-krb5-2/stable 1.20.1-2+deb12u3 armhf [upgradable from: 1.20.1-2+deb12u2]libgstreamer-gl1.0-0/stable 1.22.0-3+rpt1+deb12u4 armhf [upgradable from: 1.22.0-3+deb12u3]libgstreamer-plugins-bad1.0-0/stable 1.22.0-4+deb12u6 armhf [upgradable from: 1.22.0-4+deb12u5]libgstreamer-plugins-base1.0-0/stable 1.22.0-3+rpt1+deb12u4 armhf [upgradable from: 1.22.0-3+deb12u3]libicu72/stable 72.1-3+deb12u1 armhf [upgradable from: 72.1-3]libjxl0.7/stable 0.7.0-10+deb12u1 armhf [upgradable from: 0.7.0-10]libk5crypto3/stable 1.20.1-2+deb12u3 armhf [upgradable from: 1.20.1-2+deb12u2]libkpathsea6/stable 2022.20220321.62855-5.1+deb12u2 armhf [upgradable from: 2022.20220321.62855-5.1+deb12u1]libkrb5-3/stable 1.20.1-2+deb12u3 armhf [upgradable from: 1.20.1-2+deb12u2]libkrb5support0/stable 1.20.1-2+deb12u3 armhf [upgradable from: 1.20.1-2+deb12u2]libliftoff0/stable 0.5.0-1.1+rpt4 armhf [upgradable from: 0.4.1-1~bpo12+rpt2]liblzma5/stable 5.4.1-1 armhf [upgradable from: 5.4.1-0.2]libmagickcore-6.q16-6-extra/stable 8:6.9.11.60+dfsg-1.6+deb12u3 armhf [upgradable from: 8:6.9.11.60+dfsg-1.6+deb12u2]libmagickcore-6.q16-6/stable 8:6.9.11.60+dfsg-1.6+deb12u3 armhf [upgradable from: 8:6.9.11.60+dfsg-1.6+deb12u2]libmagickwand-6.q16-6/stable 8:6.9.11.60+dfsg-1.6+deb12u3 armhf [upgradable from: 8:6.9.11.60+dfsg-1.6+deb12u2]libmount1/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]libneatvnc0/stable 0.9.1+dfsg-1~bpo12+rpt1 armhf [upgradable from: 0.9.0+dfsg-1~rpt3]libnfsidmap1/stable 1:2.6.2-4+deb12u1 armhf [upgradable from: 1:2.6.2-4]libnm0/stable 1.42.4-1+rpt1+deb12u1 armhf [upgradable from: 1.42.4-1+rpt1]libnuma1/stable 2.0.18-1~rpt1 armhf [upgradable from: 2.0.16-1]libopenh264-7/stable 2.3.1+dfsg-3+deb12u2 armhf [upgradable from: 2.3.1+dfsg-3]libpam-systemd/stable 252.38-1~deb12u1+rpi1 armhf [upgradable from: 252.31-1~deb12u1+rpi1]libperl5.36/stable 5.36.0-7+deb12u2 armhf [upgradable from: 5.36.0-7+deb12u1]libpipewire-0.3-0/stable 1.2.7-1~bpo12+1+rpt5 armhf [upgradable from: 1.2.4-1~bpo12+1+rpt1]libpipewire-0.3-common/stable,stable 1.2.7-1~bpo12+1+rpt5 all [upgradable from: 1.2.4-1~bpo12+1+rpt1]libpipewire-0.3-modules/stable 1.2.7-1~bpo12+1+rpt5 armhf [upgradable from: 1.2.4-1~bpo12+1+rpt1]libpisp-common/stable,stable 1.2.1-1 all [upgradable from: 1.0.7-1]libpisp1/stable 1.2.1-1 armhf [upgradable from: 1.0.7-1]libpixman-1-0/stable 0.44.0-3+rpt1 armhf [upgradable from: 0.42.2-1+rpt3]libpoppler-cpp0v5/stable 22.12.0-2+deb12u1 armhf [upgradable from: 22.12.0-2]libpoppler-glib8/stable 22.12.0-2+deb12u1 armhf [upgradable from: 22.12.0-2]libpoppler126/stable 22.12.0-2+deb12u1 armhf [upgradable from: 22.12.0-2]libpostproc56/stable 8:5.1.6-0+deb12u1+rpt3 armhf [upgradable from: 8:5.1.6-0+deb12u1+rpt1]libpulse0/stable 16.1+dfsg1-2+rpt1 armhf [upgradable from: 16.1+dfsg1-2+rpt1]libpython3.11-dev/stable 3.11.2-6+deb12u6 armhf [upgradable from: 3.11.2-6+deb12u4]libpython3.11-minimal/stable 3.11.2-6+deb12u6 armhf [upgradable from: 3.11.2-6+deb12u4]libpython3.11-stdlib/stable 3.11.2-6+deb12u6 armhf [upgradable from: 3.11.2-6+deb12u4]libpython3.11/stable 3.11.2-6+deb12u6 armhf [upgradable from: 3.11.2-6+deb12u4]libqt5core5a/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]libqt5dbus5/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]libqt5gui5/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]libqt5network5/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]libqt5printsupport5/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]libqt5sql5-sqlite/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]libqt5sql5/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]libqt5test5/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]libqt5widgets5/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]libqt5xml5/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]librabbitmq4/stable 0.11.0-1+deb12u1 armhf [upgradable from: 0.11.0-1+b1]libsmartcols1/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]libsoup2.4-1/stable 2.74.3-1+deb12u1 armhf [upgradable from: 2.74.3-1]libsoup2.4-common/stable 2.74.3-1+deb12u1 all [upgradable from: 2.74.3-1]libspa-0.2-bluetooth/stable 1.2.7-1~bpo12+1+rpt5 armhf [upgradable from: 1.2.4-1~bpo12+1+rpt1]libspa-0.2-libcamera/stable 1.2.7-1~bpo12+1+rpt5 armhf [upgradable from: 1.2.4-1~bpo12+1+rpt1]libspa-0.2-modules/stable 1.2.7-1~bpo12+1+rpt5 armhf [upgradable from: 1.2.4-1~bpo12+1+rpt1]libsrt1.5-gnutls/stable 1.5.1-1+deb12u1 armhf [upgradable from: 1.5.1-1]libssl3/stable 3.0.16-1~deb12u1+rpt1 armhf [upgradable from: 3.0.15-1~deb12u1+rpt1]libstdc++-12-dev/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libstdc++6/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libswresample4/stable 8:5.1.6-0+deb12u1+rpt3 armhf [upgradable from: 8:5.1.6-0+deb12u1+rpt1]libswscale6/stable 8:5.1.6-0+deb12u1+rpt3 armhf [upgradable from: 8:5.1.6-0+deb12u1+rpt1]libsynctex2/stable 2022.20220321.62855-5.1+deb12u2 armhf [upgradable from: 2022.20220321.62855-5.1+deb12u1]libsystemd-shared/stable 252.38-1~deb12u1+rpi1 armhf [upgradable from: 252.31-1~deb12u1+rpi1]libsystemd0/stable 252.38-1~deb12u1+rpi1 armhf [upgradable from: 252.31-1~deb12u1+rpi1]libtasn1-6/stable 4.19.0-2+deb12u1 armhf [upgradable from: 4.19.0-2]libtiff6/stable 4.5.0-6+deb12u2 armhf [upgradable from: 4.5.0-6+deb12u1]libubsan1/stable 12.2.0-14+rpi1+deb12u1 armhf [upgradable from: 12.2.0-14+rpi1]libudev1/stable 252.38-1~deb12u1+rpi1 armhf [upgradable from: 252.31-1~deb12u1+rpi1]libudisks2-0/stable 2.9.4-4+deb12u1 armhf [upgradable from: 2.9.4-4]libusageenvironment3/stable 2025.05.24-1~bpo12+1 armhf [upgradable from: 2020.01.19-1+build1]libuuid1/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]libvlc-bin/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]libvlc5/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]libvlccore9/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]libvpx7/stable 1.12.0-1+deb12u4 armhf [upgradable from: 1.12.0-1+deb12u3]libwayland-client0/stable 1.23.1-3+rpt1 armhf [upgradable from: 1.23.0-1~bpo12+1+rpt1]libwayland-cursor0/stable 1.23.1-3+rpt1 armhf [upgradable from: 1.23.0-1~bpo12+1+rpt1]libwayland-egl1/stable 1.23.1-3+rpt1 armhf [upgradable from: 1.23.0-1~bpo12+1+rpt1]libwayland-server0/stable 1.23.1-3+rpt1 armhf [upgradable from: 1.23.0-1~bpo12+1+rpt1]libxml2/stable 2.9.14+dfsg-1.3~deb12u2 armhf [upgradable from: 2.9.14+dfsg-1.3~deb12u1]libxslt1.1/stable 1.1.35-1+deb12u1 armhf [upgradable from: 1.1.35-1]linux-headers-rpi-v6/stable 1:6.12.34-1+rpt1~bookworm armhf [upgradable from: 1:6.6.62-1+rpt1]linux-headers-rpi-v7/stable 1:6.12.34-1+rpt1~bookworm armhf [upgradable from: 1:6.6.62-1+rpt1]linux-headers-rpi-v7l/stable 1:6.12.34-1+rpt1~bookworm armhf [upgradable from: 1:6.6.62-1+rpt1]linux-image-rpi-v6/stable 1:6.12.34-1+rpt1~bookworm armhf [upgradable from: 1:6.6.62-1+rpt1]linux-image-rpi-v7/stable 1:6.12.34-1+rpt1~bookworm armhf [upgradable from: 1:6.6.62-1+rpt1]linux-image-rpi-v7l/stable 1:6.12.34-1+rpt1~bookworm armhf [upgradable from: 1:6.6.62-1+rpt1]linux-image-rpi-v8/stable 1:6.12.34-1+rpt1~bookworm arm64 [upgradable from: 1:6.6.51-1+rpt3]linux-libc-dev/stable,stable 1:6.12.34-1+rpt1~bookworm all [upgradable from: 1:6.6.62-1+rpt1]locales/stable,stable 2.36-9+rpt2+deb12u12 all [upgradable from: 2.36-9+rpt2+deb12u9]login/stable 1:4.13+dfsg1-1+deb12u1 armhf [upgradable from: 1:4.13+dfsg1-1]lp-connection-editor/stable 0.5 armhf [upgradable from: 0.3]lxpanel-data/stable,stable 0.10.1-2+rpt22 all [upgradable from: 0.10.1-2+rpt20]lxpanel/stable 0.10.1-2+rpt22 armhf [upgradable from: 0.10.1-2+rpt20]lxplug-bluetooth/stable 0.38 armhf [upgradable from: 0.36]lxplug-cputemp/stable 0.14 armhf [upgradable from: 0.12]lxplug-ejecter/stable 0.25 armhf [upgradable from: 0.23]lxplug-magnifier/stable 0.17 armhf [upgradable from: 0.14]lxplug-menu/stable 0.9 armhf [upgradable from: 0.5]lxplug-netman/stable 0.17 armhf [upgradable from: 0.12]lxplug-updater/stable 0.23 armhf [upgradable from: 0.20]lxplug-volumepulse/stable 0.31 armhf [upgradable from: 0.27]lxtask/stable 0.1.10-1+rpt11 armhf [upgradable from: 0.1.10-1+rpt6]mesa-vdpau-drivers/stable 24.2.8-1~bpo12+rpt3 armhf [upgradable from: 23.2.1-1~bpo12+rpt3]mount/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]net-tools/stable 2.10-0.1+deb12u2 armhf [upgradable from: 2.10-0.1]network-manager/stable 1.42.4-1+rpt1+deb12u1 armhf [upgradable from: 1.42.4-1+rpt1]nfs-common/stable 1:2.6.2-4+deb12u1 armhf [upgradable from: 1:2.6.2-4]openjdk-17-jre-headless/stable 1:17.0.15+6-1~deb12u1+rpt1 armhf [upgradable from: 1:17.0.13+11-2~deb12u1+rpt1]openjdk-17-jre/stable 1:17.0.15+6-1~deb12u1+rpt1 armhf [upgradable from: 1:17.0.13+11-2~deb12u1+rpt1]openssh-client/stable 1:9.2p1-2+deb12u6 armhf [upgradable from: 1:9.2p1-2+deb12u3]openssh-server/stable 1:9.2p1-2+deb12u6 armhf [upgradable from: 1:9.2p1-2+deb12u3]openssh-sftp-server/stable 1:9.2p1-2+deb12u6 armhf [upgradable from: 1:9.2p1-2+deb12u3]openssl/stable 3.0.16-1~deb12u1+rpt1 armhf [upgradable from: 3.0.15-1~deb12u1+rpt1]passwd/stable 1:4.13+dfsg1-1+deb12u1 armhf [upgradable from: 1:4.13+dfsg1-1]pastebinit/stable,stable 1.6.2-1+rpt2 all [upgradable from: 1.6.2-1+rpt1]pcmanfm/stable 1.3.2-1+rpt30 armhf [upgradable from: 1.3.2-1+rpt29]perl-base/stable 5.36.0-7+deb12u2 armhf [upgradable from: 5.36.0-7+deb12u1]perl-modules-5.36/stable 5.36.0-7+deb12u2 all [upgradable from: 5.36.0-7+deb12u1]perl/stable 5.36.0-7+deb12u2 armhf [upgradable from: 5.36.0-7+deb12u1]piclone/stable 0.32 armhf [upgradable from: 0.31]pipanel/stable 1:1.53 armhf [upgradable from: 1:1.49]pipewire-bin/stable 1.2.7-1~bpo12+1+rpt5 armhf [upgradable from: 1.2.4-1~bpo12+1+rpt1]pipewire-libcamera/stable,stable 1.2.7-1~bpo12+1+rpt5 all [upgradable from: 1.2.4-1~bpo12+1+rpt1]pipewire-pulse/stable 1.2.7-1~bpo12+1+rpt5 armhf [upgradable from: 1.2.4-1~bpo12+1+rpt1]pipewire/stable 1.2.7-1~bpo12+1+rpt5 armhf [upgradable from: 1.2.4-1~bpo12+1+rpt1]pishutdown/stable 0.32 armhf [upgradable from: 0.30]piwiz/stable 0.91 armhf [upgradable from: 0.86]pixflat-icons/stable,stable 0.27 all [upgradable from: 0.26]pixflat-theme/stable 0.24 armhf [upgradable from: 0.21]poppler-utils/stable 22.12.0-2+deb12u1 armhf [upgradable from: 22.12.0-2]pprompt/stable 0.23 all [upgradable from: 0.22]pulseaudio-module-bluetooth/stable 16.1+dfsg1-2+rpt1 armhf [upgradable from: 16.1+dfsg1-2+rpt1]pulseaudio-utils/stable 16.1+dfsg1-2+rpt1 armhf [upgradable from: 16.1+dfsg1-2+rpt1]pulseaudio/stable 16.1+dfsg1-2+rpt1 armhf [upgradable from: 16.1+dfsg1-2+rpt1]python3-av/stable 12.3.0-2+rpt1 armhf [upgradable from: 10.0.0-1+rpt4]python3-h11/stable 0.14.0-1.1~deb12u1 all [upgradable from: 0.14.0-1]python3-jinja2/stable 3.1.2-1+deb12u2 all [upgradable from: 3.1.2-1]python3-libcamera/stable 0.5.0+rpt20250429-1 armhf [upgradable from: 0.3.2+rpt20241119-1]python3-picamera2/stable,stable 0.3.28-1~bookworm all [upgradable from: 0.3.23-1]python3-pidng/stable 4.0.9+git20250603.8427835-1 armhf [upgradable from: 4.0.9-1+bookworm]python3-pkg-resources/stable 66.1.1-1+deb12u1 all [upgradable from: 66.1.1-1]python3-setuptools-whl/stable 66.1.1-1+deb12u1 all [upgradable from: 66.1.1-1]python3-setuptools/stable 66.1.1-1+deb12u1 all [upgradable from: 66.1.1-1]python3-simplejpeg/stable 1.8.1-1 armhf [upgradable from: 1.6.6-1]python3-urllib3/stable 1.26.12-1+deb12u1 all [upgradable from: 1.26.12-1]python3-werkzeug/stable 2.2.2-3+deb12u1 all [upgradable from: 2.2.2-3]python3.11-dev/stable 3.11.2-6+deb12u6 armhf [upgradable from: 3.11.2-6+deb12u4]python3.11-minimal/stable 3.11.2-6+deb12u6 armhf [upgradable from: 3.11.2-6+deb12u4]python3.11-venv/stable 3.11.2-6+deb12u6 armhf [upgradable from: 3.11.2-6+deb12u4]python3.11/stable 3.11.2-6+deb12u6 armhf [upgradable from: 3.11.2-6+deb12u4]qt5-gtk-platformtheme/stable 5.15.8+dfsg-11+rpi1+deb12u3 armhf [upgradable from: 5.15.8+dfsg-11+rpi1+deb12u2]raspberrypi-sys-mods/stable 20250605~bookworm armhf [upgradable from: 20241202]raspberrypi-ui-mods/stable 1.20250506 armhf [upgradable from: 1.20241112]raspi-config/stable,stable 20250707 all [upgradable from: 20241210]raspi-firmware/stable,stable 1:1.20250430-4~bookworm all [upgradable from: 1:1.20241126-1]raspi-utils-core/stable 20250514-1~bookworm armhf [upgradable from: 20240903-1]raspi-utils-dt/stable 20250514-1~bookworm armhf [upgradable from: 20240903-1]raspi-utils-eeprom/stable 20250514-1~bookworm armhf [upgradable from: 20240903-1]raspi-utils-otp/stable,stable 20250514-1~bookworm all [upgradable from: 20240903-1]raspi-utils/stable,stable 20250514-1~bookworm all [upgradable from: 20240903-1]raspinfo/stable,stable 20250514-1~bookworm all [upgradable from: 20240903-1]rc-gui/stable 1.92 armhf [upgradable from: 1.90]realvnc-vnc-server/stable 7.13.1.57 armhf [upgradable from: 7.11.0.18]rfkill/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]rp-bookshelf/stable 0.26 armhf [upgradable from: 0.24]rp-prefapps/stable 0.69 armhf [upgradable from: 0.65]rpd-plym-splash/stable 0.43 armhf [upgradable from: 0.42]rpi-eeprom/stable,stable 28.2-1 all [upgradable from: 26.7-1]rpicam-apps/stable 1.7.0-1 armhf [upgradable from: 1.5.3-1]rsync/stable 3.2.7-1+deb12u2 armhf [upgradable from: 3.2.7-1]ssh/stable 1:9.2p1-2+deb12u6 all [upgradable from: 1:9.2p1-2+deb12u3]sudo/stable 1.9.13p3-1+deb12u2 armhf [upgradable from: 1.9.13p3-1+deb12u1]systemd-sysv/stable 252.38-1~deb12u1+rpi1 armhf [upgradable from: 252.31-1~deb12u1+rpi1]systemd-timesyncd/stable 252.38-1~deb12u1+rpi1 armhf [upgradable from: 252.31-1~deb12u1+rpi1]systemd/stable 252.38-1~deb12u1+rpi1 armhf [upgradable from: 252.31-1~deb12u1+rpi1]tzdata/stable 2025b-0+deb12u1 all [upgradable from: 2024a-0+deb12u1]ucf/stable 3.0043+nmu1+deb12u1 all [upgradable from: 3.0043+nmu1]udev/stable 252.38-1~deb12u1+rpi1 armhf [upgradable from: 252.31-1~deb12u1+rpi1]udisks2/stable 2.9.4-4+deb12u1 armhf [upgradable from: 2.9.4-4]userconf-pi/stable,stable 0.11 all [upgradable from: 0.10]util-linux-extra/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]util-linux/stable 2.38.1-5+deb12u3 armhf [upgradable from: 2.38.1-5+deb12u2]vim-common/stable 2:9.0.1378-2+deb12u2 all [upgradable from: 2:9.0.1378-2]vim-tiny/stable 2:9.0.1378-2+deb12u2 armhf [upgradable from: 2:9.0.1378-2]vlc-bin/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-data/stable,stable 1:3.0.21-0+rpt4+deb12u1 all [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-l10n/stable,stable 1:3.0.21-0+rpt4+deb12u1 all [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-plugin-access-extra/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-plugin-base/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-plugin-notify/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-plugin-qt/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-plugin-samba/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-plugin-skins2/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-plugin-video-output/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-plugin-video-splitter/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc-plugin-visualization/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]vlc/stable 1:3.0.21-0+rpt4+deb12u1 armhf [upgradable from: 1:3.0.21-0+rpt3+deb12u1]wayvnc/stable 0.9.1-1~bpo12+rpt2 armhf [upgradable from: 0.9.0~dev-1+rpt2]wf-panel-pi/stable 0.102 armhf [upgradable from: 0.91]wfplug-connect/stable 0.14 armhf [upgradable from: 0.10]wfplug-squeek/stable 0.6 armhf [upgradable from: 0.5]wget/stable 1.21.3-1+deb12u1 armhf [upgradable from: 1.21.3-1+b1]wireless-regdb/stable 2025.02.20-1~deb12u1 all [upgradable from: 2022.06.06-1]xserver-common/stable,stable 2:21.1.7-3+rpt3+deb12u10 all [upgradable from: 2:21.1.7-3+rpt3+deb12u8]xserver-xorg-core/stable 2:21.1.7-3+rpt3+deb12u10 armhf [upgradable from: 2:21.1.7-3+rpt3+deb12u8]xz-utils/stable 5.4.1-1 armhf [upgradable from: 5.4.1-0.2]
I know - the starting point was pretty out of date!

Anyway, problem recurs and here is the VNC log

Code:

<14> 2025-07-15T17:41:49.070Z PHILS-WIN10 vncviewer[29200]: Child: 25152: Localize: Locales en_GB:en_US<14> 2025-07-15T17:41:49.070Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CFeatureLicensing: [MissingLicense] Missing license<14> 2025-07-15T17:41:49.070Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CModuleHosted: Getting CloudConfig.pkg from built-in resource<14> 2025-07-15T17:41:49.070Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CModuleHosted: Using business identifier b0bdff22-4786-4177-8b9e-82b98e67865b<14> 2025-07-15T17:41:49.070Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CModuleCtrlComms: Listening on RealVNC.Phil.vncviewer.CtrlComms.25152<13> 2025-07-15T17:41:49.070Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CSession: Connecting to RPi-JMRI-4GB (Chooser for Direct UDP/Direct TCP via proxy settings)<13> 2025-07-15T17:41:49.316Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CSession: Beginning RFB connection to RPi-JMRI-4GB::5900 (TCP)<14> 2025-07-15T17:41:49.316Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CSession: Encryption set to 'Server'<14> 2025-07-15T17:41:49.317Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: Server supports RFB protocol version 3.8<14> 2025-07-15T17:41:49.317Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: Using RFB protocol version 3.8<14> 2025-07-15T17:41:49.320Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CProtoV4Down: Choosing security type RA2_256(129)<14> 2025-07-15T17:41:49.343Z PHILS-WIN10 vncviewer[29200]: Child: 25152: SecTypeRA2: using AES-256<13> 2025-07-15T17:41:49.697Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: Authentication successful<14> 2025-07-15T17:41:49.843Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Server pixel format depth 24 (32 bpp) little-endian rgb888<14> 2025-07-15T17:41:49.843Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting ZRLE2 encoding (line speed 0 kbit/s)<14> 2025-07-15T17:41:49.843Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Using pixel format depth 6 (8 bpp) rgb222<14> 2025-07-15T17:41:49.843Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: requesting initial update<14> 2025-07-15T17:41:49.843Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Making Assisted Line-Speed estimation request, height 13<14> 2025-07-15T17:41:50.090Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting ZRLE2 encoding (line speed 100000 kbit/s)<14> 2025-07-15T17:41:50.090Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting full color (line speed 100000 kbit/s)<14> 2025-07-15T17:41:50.090Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Using pixel format depth 24 (32 bpp) little-endian rgb888<13> 2025-07-15T17:41:51.802Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: close: [System-10054] The connection was closed remotely<11> 2025-07-15T17:41:51.802Z PHILS-WIN10 vncviewer[29200]: Child: 25152: FdIo: setHandler: [System-10054] write: An existing connection was forcibly closed by the remote host. (10054)<14> 2025-07-15T17:41:51.919Z PHILS-WIN10 vncviewer[29200]: Child: 25152: FdIo: Write error: write: An existing connection was forcibly closed by the remote host. (10054)<14> 2025-07-15T17:41:52.960Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CModuleReconnector: Attempting reconnect...<13> 2025-07-15T17:41:52.960Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CSession: Connecting to RPi-JMRI-4GB (Chooser for Direct UDP/Direct TCP via proxy settings)<13> 2025-07-15T17:41:53.982Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CSession: Beginning RFB connection to RPi-JMRI-4GB::5900 (TCP)<14> 2025-07-15T17:41:53.982Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CSession: Encryption set to 'Server'<14> 2025-07-15T17:41:53.982Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: Server supports RFB protocol version 3.8<14> 2025-07-15T17:41:53.982Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: Using RFB protocol version 3.8<14> 2025-07-15T17:41:53.986Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CProtoV4Down: Choosing security type RA2_256(129)<14> 2025-07-15T17:41:54.011Z PHILS-WIN10 vncviewer[29200]: Child: 25152: SecTypeRA2: using AES-256<13> 2025-07-15T17:41:54.403Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: Authentication successful<14> 2025-07-15T17:41:54.481Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Server pixel format depth 24 (32 bpp) little-endian rgb888<14> 2025-07-15T17:41:54.481Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting ZRLE2 encoding (line speed 0 kbit/s)<14> 2025-07-15T17:41:54.481Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Using pixel format depth 6 (8 bpp) rgb222<14> 2025-07-15T17:41:54.481Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: requesting initial update<14> 2025-07-15T17:41:54.483Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Making Assisted Line-Speed estimation request, height 13<14> 2025-07-15T17:41:54.733Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting ZRLE2 encoding (line speed 100000 kbit/s)<14> 2025-07-15T17:41:54.733Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting full color (line speed 100000 kbit/s)<14> 2025-07-15T17:41:54.733Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Using pixel format depth 24 (32 bpp) little-endian rgb888<13> 2025-07-15T17:42:00.297Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: close: [System-10054] The connection was closed remotely<14> 2025-07-15T17:42:01.459Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CModuleReconnector: Attempting reconnect...<13> 2025-07-15T17:42:01.459Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CSession: Connecting to RPi-JMRI-4GB (Chooser for Direct UDP/Direct TCP via proxy settings)<13> 2025-07-15T17:42:02.485Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CSession: Beginning RFB connection to RPi-JMRI-4GB::5900 (TCP)<14> 2025-07-15T17:42:02.485Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CSession: Encryption set to 'Server'<14> 2025-07-15T17:42:02.488Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: Server supports RFB protocol version 3.8<14> 2025-07-15T17:42:02.488Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: Using RFB protocol version 3.8<14> 2025-07-15T17:42:02.490Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CProtoV4Down: Choosing security type RA2_256(129)<14> 2025-07-15T17:42:02.510Z PHILS-WIN10 vncviewer[29200]: Child: 25152: SecTypeRA2: using AES-256<13> 2025-07-15T17:42:02.845Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: Authentication successful<14> 2025-07-15T17:42:02.908Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Server pixel format depth 24 (32 bpp) little-endian rgb888<14> 2025-07-15T17:42:02.908Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting ZRLE2 encoding (line speed 0 kbit/s)<14> 2025-07-15T17:42:02.908Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Using pixel format depth 6 (8 bpp) rgb222<14> 2025-07-15T17:42:02.908Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: requesting initial update<14> 2025-07-15T17:42:02.955Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Making Assisted Line-Speed estimation request, height 13<14> 2025-07-15T17:42:02.959Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting ZRLE2 encoding (line speed 0 kbit/s)<14> 2025-07-15T17:42:03.133Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting full color (line speed 9228 kbit/s)<14> 2025-07-15T17:42:03.133Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Using pixel format depth 24 (32 bpp) little-endian rgb888<14> 2025-07-15T17:42:03.314Z PHILS-WIN10 vncviewer[29200]: Child: 25152: QualSelector: Requesting ZRLE2 encoding (line speed 54028 kbit/s)<13> 2025-07-15T17:42:03.331Z PHILS-WIN10 vncviewer[29200]: Child: 25152: CConnection: close: [EndOfStream] The connection closed unexpectedly.
I ported this image to the sedcond Pi that IS working and it also fails to connect:

Code:

VNC(R) Viewer 7.0.1 (r48981) x64 (Feb 2 2023 15:31:48)Copyright (C) RealVNC Ltd.RealVNC and VNC are trademarks of RealVNC Ltd and are protected by trademarkregistrations and/or pending trademark applications in the European Union,United States of America and other jurisdictions.Protected by UK patent 2481870; US patent 8760366; EU patent 2652951.See https://www.realvnc.com for information on VNC.For third party acknowledgements see:https://www.realvnc.com/docs/7/foss.htmlOS: Microsoft Windows 10, version 22H2, x64<14> 2025-07-15T17:45:14.874Z PHILS-WIN10 vncviewer[15696]: LogDestMem: Start replaying stored messages<14> 2025-07-15T17:45:14.874Z PHILS-WIN10 vncviewer[15696]: Localize: Locales en_GB:en_US<14> 2025-07-15T17:45:14.874Z PHILS-WIN10 vncviewer[15696]: CFeatureLicensing: [MissingLicense] Missing license<14> 2025-07-15T17:45:14.874Z PHILS-WIN10 vncviewer[15696]: LogDestMem: Finished replaying stored messages<14> 2025-07-15T17:45:14.875Z PHILS-WIN10 vncviewer[15696]: AbComms: Listening on RealVNC.Phil.vncviewer.AbComms<13> 2025-07-15T17:45:14.875Z PHILS-WIN10 vncviewer[15696]: AbApp: started<14> 2025-07-15T17:45:14.877Z PHILS-WIN10 vncviewer[15696]: AbModuleHosted: Getting CloudConfig.pkg from built-in resource<14> 2025-07-15T17:45:14.880Z PHILS-WIN10 vncviewer[15696]: AbModuleHosted: Using business identifier a68f1834-1125-4c15-9614-c1ca690500fc<14> 2025-07-15T17:45:17.967Z PHILS-WIN10 vncviewer[15696]: Child: 12864: Localize: Locales en_GB:en_US<14> 2025-07-15T17:45:17.967Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CFeatureLicensing: [MissingLicense] Missing license<14> 2025-07-15T17:45:17.967Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CModuleHosted: Getting CloudConfig.pkg from built-in resource<14> 2025-07-15T17:45:17.967Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CModuleHosted: Using business identifier a38cd3dc-1934-4334-9b42-0d028cc58574<14> 2025-07-15T17:45:17.967Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CModuleCtrlComms: Listening on RealVNC.Phil.vncviewer.CtrlComms.12864<13> 2025-07-15T17:45:17.967Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CSession: Connecting to RPi-JMRI-4GB (Chooser for Direct UDP/Direct TCP via proxy settings)<13> 2025-07-15T17:45:19.098Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CSession: Beginning RFB connection to RPi-JMRI-4GB::5900 (TCP)<14> 2025-07-15T17:45:19.098Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CSession: Encryption set to 'Server'<14> 2025-07-15T17:45:19.098Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CConnection: Server supports RFB protocol version 3.8<14> 2025-07-15T17:45:19.098Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CConnection: Using RFB protocol version 3.8<14> 2025-07-15T17:45:19.101Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CProtoV4Down: Choosing security type RA2_256(129)<14> 2025-07-15T17:45:19.119Z PHILS-WIN10 vncviewer[15696]: Child: 12864: SecTypeRA2: using AES-256<13> 2025-07-15T17:45:19.514Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CConnection: Authentication successful<14> 2025-07-15T17:45:19.704Z PHILS-WIN10 vncviewer[15696]: Child: 12864: QualSelector: Server pixel format depth 24 (32 bpp) little-endian rgb888<14> 2025-07-15T17:45:19.704Z PHILS-WIN10 vncviewer[15696]: Child: 12864: QualSelector: Requesting ZRLE2 encoding (line speed 0 kbit/s)<14> 2025-07-15T17:45:19.704Z PHILS-WIN10 vncviewer[15696]: Child: 12864: QualSelector: Using pixel format depth 6 (8 bpp) rgb222<14> 2025-07-15T17:45:19.704Z PHILS-WIN10 vncviewer[15696]: Child: 12864: QualSelector: requesting initial update<14> 2025-07-15T17:45:19.704Z PHILS-WIN10 vncviewer[15696]: Child: 12864: QualSelector: Making Assisted Line-Speed estimation request, height 13<14> 2025-07-15T17:45:19.891Z PHILS-WIN10 vncviewer[15696]: Child: 12864: QualSelector: Requesting ZRLE2 encoding (line speed 100000 kbit/s)<14> 2025-07-15T17:45:19.891Z PHILS-WIN10 vncviewer[15696]: Child: 12864: QualSelector: Requesting full color (line speed 100000 kbit/s)<14> 2025-07-15T17:45:19.891Z PHILS-WIN10 vncviewer[15696]: Child: 12864: QualSelector: Using pixel format depth 24 (32 bpp) little-endian rgb888<13> 2025-07-15T17:45:19.903Z PHILS-WIN10 vncviewer[15696]: Child: 12864: CConnection: close: [EndOfStream] The connection closed unexpectedly.
So the HARDWARE causes the same VNC failure - so it is therefore (I guess) a difference in the software - but what??

Hope this helps someone

Statistics: Posted by philguk — Tue Jul 15, 2025 5:51 pm



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