Background: Changed nothing on network, controller, or in settings in the past month. Updates are turned off. PFsense firewall -> Flex mini switch -> UAP AC-Lite

Woke up this morning to an extremely spotty wifi experience where i can only connect for a few seconds. Have spent all day troubleshooting with no luck. Run a 3rd party pfsense firewall which is rock solid. No issues on wired connections at all. Only issues with the access point itself. Plugged in a 10 year old Belkin N Router configured as an access point, and it is solid as well. Have isolated to the access point itself. For part of the day it seemed to be channel hopping very rapidly, but for the most part just keeps disconnecting itself from my firewall/switch. 2 devices are hardwired to my flex mini and working fine, so I know it's not the switch.

Any help appreciated. This is not the first Unifi device I've had that has randomly shit the bed, but I'm about to make it my last and buy a Netgear wifi 6 AP...