Since the latest update some months ago when I reboot the router the wireless clients can't connect anymore.
The router is in AP mode, connected via wire to a normal port to a TP-Link AC750 which provides internet. DHCP and gateway is correctly configured.
Both 2.4GHz and 5GHz are enabled on both routers and the network name and passwords are the same for both frequencies in both routers.
All the wireless settings are the default ones.
The wireless roaming works perfectly on all client devices when configured, but when I power off everything and start again the clients won't connect to the Archer C9, I have to manually disable the wireless on the C9 with the corresponding area coverage loss.
Does someone have a solution other than a firmware downgrade?