Hi all
I started having this problem yesterday. Tried all the solutions mentioned above but nothing seemed to solve the issue. I use virgin broadband so was not connected to any issues with BT.
Yesterday I implemented a new security package on my PC and Ipad. This included some new VPN software.
I have found that I cannot see my Sky Q box in Sky Go if the VPN is on but can if i turn it off.
So my solution is to turn off my VPN when I want to watch or stream something from my Sky Q box on my ipad. I hope this helps.