@Kevin_Z The signal strength is 31dB which should be good and when it's working throughput is, as I said, 70Mbps. So I don't think it's the signal. Though I notice that everyone else is on Channel 36...

I've got a Archer VR400 connected to my ADSL and an Archer C7 in another room in WDS mode. And the WDS connection is very good - 70Mbps - but slightly unstable. Once or twice a day it drops out and I...