I have 2 EAP610s managed by an Omada Controller v5.15.6.7.   However this issue also happened with the previous 5.14.x controller.

Essentially, these two APs will randomly stop accepting clients and all clients move to one or the other.  I then also have issues where both APs will randomly reboot.  Sometimes, they both get so hungup that neither will accept clients and I have to power cycle them manually.

Anyone else experiencing this?  This is in a 2100sqft 2-story home.  Each AP is on their own channel for 5 and 2.4 bands.  I have a combination of SSIDs with dedicated VLANS using PSK and a couple SSIDs using DPSK for VLAN assignments.

When I upgraded to 5.15.6.7 of the controller I did from a fresh install of Ubuntu 22.04 and just re-imported my backup config to the new controller.  I am thinking this is something in the firmware on these APs and just not been reported as an issue as it might be related to DPSK which I think many don't use.

I also have not seen any beta release of the firmware for the EAP610 that I could try.