-
Most of the Ubiquiti stuff that matches the criteria is out of stock so second hand prices are sky high at the moment (more than RRP on a few bits I saw).
I've tried various different cables (and a couple of different tough switches). Both APs are adopted, fully up to date and show as fine in the controller. I haven't tried SSHing to them but see no reason why it wouldn't work. Not sure how you find the version but they are reasonably old, at least 5 or 6 years and probably more (although I'm pretty sure the tough switches provide 24V).
Shouldn't be any VLAN shit going on and can't see anything in settings. Tough switches are configured for PoE with the LED showing. I've tried various different ports (and the port works if it is the first AP to be plugged in).
A new power supply was in my thinking but a decent one is half of the price of a replacement switch with no guarantee of working.
My troubleshooting usually involves:
Have you tried with different cables? Are both APs adopted by the USG? Can you SSH to the APs? Is everything as up-to-date as it can be? Is there any vlan / trunking fuckery happening? What version AP are they - 6 needs 24v, tough switches only provide 12v. Are the tough switches configure for POE?