"Unable to join network" error on TP link TL-WA901N
Hello.
I am using a TP Link TL-WA901N router as an AP, powered up using PoE. A few weeks ago I noted the lights on top of the router (power, ethernet and Wi-Fi) not lightning up in the usual manner, and I then realized I was getting an error when trying to connect to the network (My network architecture is not perfect as there is no seamless handover, however the area covered by the router in question has no other wifi access. When I try to connect, it sometimes shows the network SSID as being "open" and not secured, and other times requires a password. I disconnected the router from power and restarted it and it did the same. I "forgot"/removed the network SSID and password form my phone and laptops list of known connections, tried to reconnect and could not. I reset the router, tried to connect and couldn't. I am able to access the internet using the same ethernet cable hardwired to a laptop, at a speed of very close to the line speed of ~ 100/100 MBPS. I have tried to connect to the default SSID of the router via the QR code and it returns the same error of "Unable to join network". This occurs across all devices. I am unable to log into the router landing page as I cannot connect to the SSID. It appears the router keeps resetting itself every 60-605s. I have taken a video to confirm this.