Hello,

Problem solved!

Looking at windows events viewer, I noticed that services couldn't start due to corrupted files.

The analysis and repear using:
SFC / scannow
solved the problem.

All my devices are in the default WORKGROUP.

The problem could be related to some software upgrade as I made no change and it worked a while ago.

From a PC (called PC1 later on; running W10), I do not see other PCs or multimedia boxes connected on my local network.
Using \\192.xx.yy.zz doesn’t work.
From a W10 tablet PC (called PCt later...