One client shows no query results on the Web UI, just an error message

My apologies, I pointed you the wrong way.
Something else going on.

These bits confuses me:

Is it only one client device that has troubles displaying recent queries or all of them ?

If its only the one Windows10 PC, and your sure ipconfig output is correct ... I dont know what next :frowning:
Power cycle all devices involved as a last resort.
Post a debug token here for the devs and mods to have a look: