Bridged VM network issue after reboot

[Matesh]

Greetings everyone,

 

I had a power fault at 2AM this morning, my UPS went ballistic, and I shut my Unraid server down before there was a power loss. After powering the system back on again, it was nowhere to be found on my network. I realised, that fiddling around the UPS, I pulled the network cable out of the machine. I plugged it back in, but since all this shebang, the single Ubuntu VM I'm running on my server has networking issues.

The Unraid server obtains IP address via DHCP, it is reserved in my router, 10.10.0.100. Bridging is enabled and the VM is configured to be bridged via br0. It obtains IP address via DHCP, which is reserved in my router 10.10.0.99. The VM starts up, but is not accessible via VNC from the web interface. However, I can access it from my computer on the local network, on the Unraid server IP 10.10.0.100 port 5900. The VM is able to obtain IP its IP address via DHCP, it can ping google.com and devices on my local network. However, I'm unable to ping it or SSH into it from my local network.

 

I'm concerned that for months this setup has been working flawlessly, after several restarts, but now seems to be broken. The configuration hasn't been changed anywhere since the last power-on, and routing tables, VM configurations seem to be as per recommended in pretty much all articles and forum posts i found relevant to this issue.

If anyone had any similar issues in the past, I'd much appreciate some ideas about what I can try to look at.

homelab-diagnostics-20231201-1159.zip