whenever i watch a tv series or film on the sky, now tv and channel 4 app, the video buffers and then the ps4 comes up with a message saying wifi connection lost, then it completely stops the roouter from working and it shuts down, so then no device of mine has wifi. it doesnt happen on the netflix app or the bbc iplayer app
can someone help as it is so annoying and ive lost my patience with it