Link flapping on WAN Interface

[snejball]

Good Evening,

I am running 22.7.9_3 on a qotom q355g4, Intel I211 behind a Fritzbox as exposed host with ipv4 / ipv6 dual stack and delegated prefixes tracking my WAN.

One or two releases ago I started experiencing weird connection drops on my WAN Link igb1 and i am at a loss what could be causing this.
Link is always restored, but it is disruptive enough to break VPN connections, video streaming / conferencing / voip etc.

Sometimes i see SIGTERM for radvd in the logs.
dmesg shows link state changes for WAN interface.
I already changed cabling, which did not help, but at least I got that ruled out now.
- IPS is disabled
- no offloading


Maybe someone is able to point me into the right direction to fix this.

[axsdenied]

May not even be your opnsense box.  If the sigterm message is happening because of an issue on the Fritzbox side, you'd see the same results.

[snejball]

Hey,

you might have been right on this one:
I swapped Ports on the Fritzbox, from the 2.5 GbE to one of the 1 GbE Ports, and it seems stable now for about 24 hours.
Maybe some incompatibility in the autonegotiation.
Unfortunately logs from the FB side don't show much.

But thank you very much.