Regular disconnects/reconnects by RVNC and no screen updates.

[Jodel]

Maybe check that power save isn't set to on for your AP adapter?

Code:

iw dev wlanX get power_save

Where wlanX is your internal adapter.

Thanks for that suggestion.  I have power save off.

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As I have set up networking a few times in different ways I think I may try to go back to basics and delete all current settings and start again.   I might also do a complete removal of RVNC and re install it.  I'll report back on progress!
Jodel