I have a 200GB per month SIM plugged into a Huawei B315-22 router as the broadband in our are is shocking.
For the most part it works fine when on PC or loading web pages on mobile, however when using mobile apps it's very different. For example when using Sky Sports or Amazon apps it takes an age to load them, if they load at all. Also I'm not sure this is related but I have a new echo show and it says it can't connect, despite other echo devices currently working fine. The Show did connect using the same SIM when tethered to a mobile, so I'm guessing it's something to do with the router settings?
I've tried changing the wife security password to WPA2 only, rather that WPA/WPA2 but that hasn't worked. Does anyone know what might be causing this?