So I have a Nighthawk X4 (AC3200) Wifi Cable Modem Router that recently decided that it cannot connect devices to the 5G band. Same devices can connect to 2.4G. 5G is visible and signal appears strong, yet the devices can't connect. Tried resetting a few time without success. Tried changing channels without success. When I remove security from the 5G, the devices can connect, but I don't want to leave without security.
Any ideas...I'm about to throw this thing against a wall.
Password haven't changed...it worked fine until recently and no special characters used. Was the same as 2.4G, but I changed it and made no difference. Same with WIFI SSID names.
I'll try changing them both again, but I'm not understanding why it would make a difference if it had worked fine for a year?
I changed the 5G SSID name again and the password (no special characters) and no change.
BTW...it's set to WPA2-PSK [AES] and 'Enable SSID Broadcast' is checked. FWIW...tried all the channels. Called Spectrum and went through 2 hours with support to be told it was the router...duh. FWIW...this is on their approved list for modem/router combos.
I think this thing is FUBAR and doesn't make sense paying to ship it back/forth with no guarantee it won't happen again (as other posts suggest). Very disappointing for a modem/router combo that is less than 2 years old and nearly $300. Can't say that I will be buying Netgear again if this is the case and support for 90 days = bad joke, not to mention $80 for continued support to tell you it's useless.
Is it just one device having this issue or all of your devices can not connect to the 5G? Have you tried to tell the devices to forget the network and then try to connect again?
