@Kevin_Z Are you able to see the 2.4G and 5G signal on those devices? If yes, what is the error message you got when you try to connect to it? I can see the SSIDs on network, after connecting on...

@Kevin_Z Hi, I have the same problem, cannot authenticate wireless devices on 2.5 and 5 Ghz. No matter what channel / channel width is. LAN is working. No WiFi for me. Newest firmware. Yesterday...