N300 Showing Red Client link yet located withing 2M of router. No internet connection!.

N300 WiFi range extender, Stopped Working earlier. The Router link is Green. But the Client link is Red. The internet cannot be accessed The Device is withing 2 M of the Router, So the location is well within the the range of the device. The router can be accessed by Devices further away, so the issue is unlikely to be related to the Router. Which is a full modern dual band device.

I have carried out a Factory Reset. Also the Website www.mywifiext.net cannot be accessed either?.

Anyone experienced this? and if so what solved it?.