Mobile phones not using router access
I'm new to this so please excuse basic errors and wrong assumptions.
This MR500 is in a static caravan next to a window and shows one or two bars internet access. Two mobile phones are logged in to the router, the Tether app shows both as clients. Upload and download speeds are also displayed by the app so the access is there. But neither phone shows any improvement in performance and often have no internet access at all. I expected the phones to be able to make and receive calls and texts as if they were in a "normal" reception area once the router was on.
What am I doing wrong? Any help much appreciated!