ok when my phone is connected to my EE brightbox's Wifi all seems ok until i plug the Sony x compact into any plug socket in the house to charge, the internet light on router (left & right pointing arrows) flash fast and continuously & the 2 little arrows next to the Wifi sign on the phone stay solid all the time & the internet on both phone and pc become so slow its impossible to use.
Can you make it so it is not discoverable? Another thought - do you have a dual band router? If so, is there the facility on your phone to connect to both? If so you could try using the other connection. To find this you need to look at your wifi connection on your find which you normally find under settings.