More info might be helpful, such as, do you suspect of any particular setting being changed by the firmware update?
How is it not connecting, as to what type of devices are losing the connection and do you have Ai Mesh Nodes?
I noticed during firmware updates it tries to keep the settings as youÃ¢â‚¬â„¢ve set it. *After my ordeal of having hard reset all my ASUS networking equipment, (4 routers and 1 repeater), I found the system stable with the latest releases. *I have 184.108.40.206.388_2xxxx on 3 different routers, AXE16000, AXE11000, and RT-AX86U. *I think from now on after a firmware update if I notice any strange behavior I will not hesitate to hard reset, the one that was updated, and if I still feel somethingÃ¢â‚¬â„¢s off all 5 of themÃ¢â‚¬Â¦
If this may be something that you havenÃ¢â‚¬â„¢t tried with the most recent update it may be worth a shot.