Nice troubleshooting steps, even though you're (still) mixing up some units ;)
I'm guessing something in the network card or its driver, or an issue in your network (congestion, flooding?).
Any chance you can manually reload/restart the networking system? I don't know about OMV but on a linux distro it's usually a matter of restarting networking/NetworkManager etc.
Nice troubleshooting steps, even though you're (still) mixing up some units ;)
I'm guessing something in the network card or its driver, or an issue in your network (congestion, flooding?).
Any chance you can manually reload/restart the networking system? I don't know about OMV but on a linux distro it's usually a matter of restarting networking/NetworkManager etc.