[Petra-Kathi]

Would it be possible to set the master tablet up as a custom WiFi hotspot of its own? If yes, this would create a network that is always available and (for the ultra-short distance of the connected devices) certainly stable.

It is always questionable to have to rely on the mercy of foreign infrastructure.

(I am quite happy with the BT connection between my two old but well-working Samsung tablets, btw.)

Cheers,
Petra