Snapmaker 2.0 Suddenly Undiscoverable

I see that the Snapmaker has had a couple of network issues, but recently I found that the Ultimaker Cura Plugin and Snapmaker Luban are unable to auto-discover the snapmakers on my network.

They are on the same subnet but still unable to detect each other. I’ve gone ahead and connected them manually, however one snapmaker is refusing to accept new files, and will refuse connections right after.

Any debugging help would be much appreciated.