LAN Port failures with TOS 5.4.4

Hi, since the update to TOS 5.4.4 I experience random failures of wired LAN connections. The link appears to be up (indicator light is on) but no traffic is flowing. If I unplug and replug the cable, the connectivity is restored until the next random failure which may occur after a few minutes or a few days. The system log only shows activity when I unplug and replug the cable.

Any ideas what may be causing the trouble?

Did you update to TOS v6 in the meantime? If no, give it a try. If yes, does it solve the issue?

My router was automatically updated to TOS6. Overall the update went OK, but required a manual reboot to restore the router. While I do have small problems with the update I have not noticed the LAN failures, yet.

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