Enson Loo wrote Yeah, it seems a beta firmware which fixed my router from 5Ghz signal disappearing. You may call them and get the beta and have a try. Seems the same issue. Hmmm... I was working with...

I will give them a call tonight.

What do you mean, got the firmware on the issue... I also have this problem and have the latest firmware. Is there a secret firmware?

Model : Archer C7 AC1750 Hardware Version : v2 Firmware Version : 170525 ISP : Cox Have upgraded to latest firmware and the signal goes down constantly & now the 5ghz signal isn't showing up in 80%...