@casperen I'm glad it's fixed. One possibility is that your router installed an automatic update that introduced an incompatibility with the older firmware for the Duet WiFi module.
Finally figured it out, had an issue with it loading an old height map.
Found the issue by using the M114 command:
M114
X:255.000 Y:240.000 Z:10.710 E:0.000 E0:47.7 Count 79200 2400 4200 Machine 255.000 240.000 10.710 Bed comp -0.210
The Bed comp was set to 2.5mm, reran the bed mesh and it seems to have fixed the issue.
