For Info Only.

I had an AV500 and AV600 connected to a PA-4010 - all worked fine.

I then added a new AV600 - all good.

Then I changed to Starlink and my newest AV600 appeared to have become faulty - continuously rebooting.  It was only a few weeks old.  I organised a replacement with Amazon, and a new AV600 arrived the next day.  All good!

But, the new AV600 had the same problem.

Very odd - and somewhat unlikely.  The older powerline adapters were still working.

Having looked at threads and asking TP-Link, the advice was to update the firmware.  I would have expected there to be a recent version but it was actually last updated in 2023, so unlikely that the new AV600 had any older firmware.

Turns out, the EU version of the firmware (1.0.12 Build 230309) needs to be DOWNGRADED to 1.0.11 Build 221123 and this reboot problem is solved.

Quite a conundrum and much head scratching - but this is the solution!