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February 23rd, 2026 07:16
WMS - some devices are in unknown status
Hello,
what exactly does it mean when a device (DELL OptiPlex 3000, ThinOS) is in "unknown" status? When I restarted all of them, they were in "online" status for a while, but after a while, the number of "unknown" devices started to increase. Currently, I see about 1/3 of the devices as "unknown." All devices are in the same VLAN. They all have the same OS, Dell ThinOS 2511 (2511_10.0380). I have WMS version 5.4 471.




DELL-Scott H
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February 23rd, 2026 12:33
What do you see on the thin clients that show as unknown? What does the log say? What does the System information>About screen show for WMS Status?
Can you send a message to the thin client from WMS, and does it popup immediately or only after a reboot of the TC?
Leoleu
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February 25th, 2026 08:32
@DELL-Scott H
I see the message immediately after sending. I don't see anything unusual in the events. I downloaded the logs from one device, but I'm not sure exactly what to focus on. I'm attaching just a few examples of errors that I found.
journalctl_export.log
Feb 23 12:43:19 C1157 desktop-service-handler.sh[8368]: [02-23 12:43:19.552] CamHAL[ERR] load_camera_hal_library, failed to open PCI device. error: (null)
Feb 23 12:43:19 C1157 desktop-service-handler.sh[8368]: [02-23 12:43:19.553] CamHAL[ERR] get_number_of_cameras, function call is nullptr
Feb 23 12:43:19 C1157 desktop-service-handler.sh[8368]: [02-23 12:43:19.553] CamHAL[ERR] get_number_of_cameras, function call is nullptr
nm.log
2026-02-24 06:53:05.819:wlan0: media status change to up
2026-02-24 06:53:05.850:Delete defrt without gateway!
2026-02-24 06:53:05.850:Error: ifname=wlan0 gw= action=2
2026-02-24 06:53:05.850:net_ipv6_rtdelbyif
rollbacksys.log
[2026-02-24 20:43:26.1771962206] N/rollback/ Get Last Known Good State info
[2026-02-24 20:43:26.1771962206] E/rollback/ Error: Mount failed
[2026-02-25 04:43:26.1771991006] N/rollback/ Get Last Known Good State info
[2026-02-25 04:43:26.1771991006] E/rollback/ Error: Mount failed
shell.log
/tmp/rds_feeds/BIEM4QP9WC22N3HG/mstsc256_32x32.png: No such file or directory
/tmp/rds_feeds/BIEM4QP9WC22N3HG/msedge-HDKSHP-CmsRdsh_32x32.png: No such file or directory
/tmp/rds_feeds/BIEM4QP9WC22N3HG/logoff-RDS-CmsRdsh_32x32.png: No such file or directory
wlogd.log
[2026-02-25 04:43:26.388] D/system_daemon/system (7904/7904) Error: Failed to read the identification file. Reason: Failed to open file “/etc/VERSION”: No such file or directory.
[2026-02-25 04:43:26.388] D/system_daemon/system (7904/7904) Error: Failed to read /sys/class/dmi/id/wyse_security_key file. Reason: Failed to open file “/sys/class/dmi/id/wyse_security_key”: No such file or directory.
[2026-02-25 04:43:26.388] D/system_daemon/system (7904/7904) Error: Failed to read /sys/class/dmi/id/manufacture_date file. Reason: Failed to open file “/sys/class/dmi/id/manufacture_date”: No such file or directory.