I’ve just set up my new c8. I’m a little bit underwhelmed with the WiFi and webos. Stuff like youtube is painstakingly slow and the content plays in very low resolution despite them being HD and 4K videos, whether this is on YouTube or Netflix. A lot of the time when I select the relevant apps it says there is no WiFi connection and it buffers a lot even though I have very fast internet. The router is in same room about 12 feet away. I’ve never had this type of issue on my previous Samsung tv which was flawless on the wifi and for playing online content. Please help.