Seems like I have a similar issue with an AR150 (bought directly I think). I rebuild it, it works fine for a few power-ups/days before locking up. Normally I can power up, then medium press the reset button to clear the network settings, or if I’m having significant issues I’ll need to long press it and do a complete rebuild. Not sure what happened yesterday but it powered up okay but didn’t seek to actually boot as pressing the reset button post power-up didn’t do anything. I had to upload a new firmware via uboot. I’ve been running the 2.24 firmware (previously during beta). I’m either powering off a 5V 1A portable battery pack or a 5V 2A USB port on an Anker adapter. Given the router is rated for 1A I’m not sure why it absolutely needs 2A. Does this need to be updated?

I’m finding the micro USB port to be a bit unreliable as the power either fully drops out or will cause intermittent resets if the PCB is in the housing - slightly moving the USB cable when it’s plugged in is enough to do it, and sometimes I cannot get it to power on at all (happens with multiple cables). I’ve removed the card from the case and placed it directly on a bench; it’s been maintaining power properly for a couple of hours now

It’d be useful if the LEDs did something to indicate an issue bringing up the network or other core component; other than the wifi network not showing up, there’s no way to tell what’s going on and diagnosing issues on the road with just a phone/tablet can be tedious.