Lost 5GHz

I have a AR750S firmware version 3.104. I never make any configuration changes, just check for updates. I plug the router in about once a month just for the weekend basically repeating a 2.4GHz WiFi signal.Today when I plugged in I do not see the availability of the AR750S 5GHz SSID. I do see the 2.4GHz SSID. In the settings it shows the 5GHz enabled. I even toggled the 5GHz off then back on, re-booted the router, but no success getting the 5GHz SSID to return. The 5GHz SSID has worked since updating to 3.104 and his not hidden. Are there any suggestions to troubleshoot this issue?

You’re sure it is not the device you’re trying to connect to the ar750 not seeing it? Many devices do not have 5GHz radios. However, I assume you’re using the same device you saw it available on before. Had to ask though.

I have tried from multiple devices. I have also used WiFi Analyzer, nothing there.

I would manually flash the 3.104 again, not saving the config settings. If using the browser UI method doesn’t fix it then I’d try the UBoot debrick method, but only if you’re familiar with it and comfortable doing it.

Not familiar with the debrick method. What I did try was deleting the radio thinking I could simply re-add it. But I do not see a way. Can that be accomplished somehow without a factory reset?

There is a way to add the interface back but takes some knowledge of openwrt and what it was before you deleted it. Again, best thing to do is reset/reflash to avoid further problems. All I got, maybe someone else will jump in. Good luck!

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