My AC87U's 5Ghz network has disappeared for some of my connected devices. It worked fine for 5 months. Now, my Android phone, Android tablet and Surface Pro (Win 8.0) can see and connect to the 5Ghz network fine. But my Nest thermostat, Honeywell alarm panel, sony bluray players and 5 laptops/desktops running XP, Vista and 8.1 cannot see the 5Ghz network at all any more. If I try and connect manually by entering the SSID, it tells me the network already exists.
I have rebooted, reset, rolled back firmware version, installed latest firmware, changed SSID names, changed encryption, turned off encryption and made sure the "Hide SSID" was not on.
Any ideas why devices that had no problem with 5Ghz before, now can't see it? Or why some devices can? I'm getting ready to send it for service!
All devices connect fine to the 2.4Ghz network.
I have rebooted, reset, rolled back firmware version, installed latest firmware, changed SSID names, changed encryption, turned off encryption and made sure the "Hide SSID" was not on.
Any ideas why devices that had no problem with 5Ghz before, now can't see it? Or why some devices can? I'm getting ready to send it for service!
All devices connect fine to the 2.4Ghz network.