Thanks for a quick reply!
I checked every single tab in the modem settings, there was no setting suggesting it would be isolation-related.
I was able to ping the tablet.
I checked Public/Private network setting in Windows – and this change worked!! Now I am able to see the primary machine on tablet and the connection is stable.
Is it part of the connection tutorial? It surely should be.
Thanks a lot for your time and solid support! Keep doing a good job!