Have been using Piaware 4.0 (one month now from the upgrade) on a Pi Zero W and a Pro Stick Plus (blue) without any problems.
Suddenly Piaware stopped reporting and ssh is unnaccesible. I isolated the problem: Whenever I plug the receiver onto the Pi, wifi drops, if I unplug it, wifi is restored immediatly.
I already checked dmesg and no voltage issues are reported, I changed the power supply but the issue was not solved either. I reimaged my sd card with old backups proved to work (back to 3.8.1) but the issue is still there.
I already disabled wifi power management and iwconfig reports it a being disabled.
Lastly I put the same SD card on another Pi (Pi3B+) and it works perfectly.
So I think the dongle is not faulty and the sd card is working fine. I think it’s a power management issue.
Is there any other power management configuration I can play with besides iwconfig?
It’s really weird it has been working for months 24/7 but now it’s showing such a weird behaviour.
Thanks for your help.