When I try to watch a video or update the channels on wifi I have to wait several minutes for things to load, but when I turn off the wifi and turn on the 4G I can use it with no problems (updating the channels and watching videos are very fast).
What can I do to fix this?
Had the same problem with a router that had broken ipv6. Connections to youtube would always fail or stall... routwr reboot did the trick.
Alao there are ipv6 test websites out there. They showed the problem.