S6 won't connect to series 6 tv!

[AC Question]

I bought a new TV a while back, Samsung series 6, for a while my phone would connect to the TV via smart view, however for a few weeks now it won't. A message appears on my TV says to try and connect through my phone instead of the TV but that's exactly what I am doing! I believe when I used to be able to connect my wifi direct was on at the same time as smart view, however a message pops up on my phone stating that they cannot be used simultaneously and that I should turn off wifi direct, I know that the problem is with my phone rather than the TV as my mum's tablet connects to the TV really easily, please can someone help me sort the problem without a full factory reset, thank you!