I have had a Lumia 535 since September. Recently I have been having some problems with connecting to my Virgin Media router. All the other WiFi networks I can connect to apart from my home one. It comes up with a message about duplicate settings and tells me to delete the network, which I do. I then try and reconnect, but it comes up with a message saying the network didn't respond. The only way to fix this is to turn the router off and on, but it doesn't last and I'm worried it's going to break it. What can I do to fix this problem for good?