Hi there,

i've the problem on a omada-controller-managed tl-sg3428 v2 with latest firmware and a normal sff computer.

On this computer theres a windows 10 pro, latest patches and hyper-v role.

client has 2 dedicated nics (Realtek), one for external network/vlan, other is internal.

on that client im using a vm with sophos xg and several vlans.

the external nic on switchport 15 is always flapping. Even if i configure 1000/fdx (no auto) fixed i got these errors, but only with the external nic.

I dont have changed the switch-port so i cannot tell you, if the error go away after that. I've also disabled spanning tree or loopback protection.

But how can i see detailed logs on omada? Im just seeing that there is a connect/disconnect, but no errors on that port. :-/

Or am i misinterpreting these messages and the meaning is only for this named vlan and not the port/link itself?

If so, how can i configure it correctly to avoid this flapping behavior?

Thanks in advance,

Manuel aka Umpf