Yeah, thanks! That seems to be the problem. I found it now, in a network.cfg file in the Diagnostics zip. Didn't know where to look....
But if that's the problem, how to fix it, should i delete some lines? But where is the live network config file?
Found it on the boot device in config directory, but I can only seem to download that file, not edit it...
Remove the usb device from the unraid box and edit it on a standalone pc? Will that not wreck the install?
EDIT: removed the lines mentioned from terminal. seems to have solved the issue;-) Thanks for pointing out the direction!