@TP-Link I am currently using the NOW TV HUB 2 (Model NR801). This is the router which I got directly from my broadband provider. To fix the issue I simply just have to turn then wifi repeater off...

Hey, A while ago I bought a TP-Link RE450 AC1750 WiFi range extender (v3 model) and it worked perfectly. I used it to connect about 8 devices and it had no issues. However, recently I switched...