From time to time, my 5ghz connection simply stop passing internet thru it. I have devices connected with cable, 2.4Ghz wi-fi and also 5Ghz wi-fi. Then my 5Ghz wi-fi shows that there's no internet, but every other device not connected to the 5Ghz works, be it wired or wireless.

I've changed some options, like channel and channel width but to no avail.

I'm truly at a loss here, the wi-fi itself is working, I can access my devices thru it, the signal is still at it's peak, it onlt shows the "no wan" exclamation and I have to wait until it starts working proprly again.

My C7 is setup as an AP, I use it to manage my connections, my wan comes from a Huawei fiber router that my ISP provided.