For a few weeks now, I can play single player and crate my whole worlds and stuff that like that though I can log into servers, connect to realms or access the Marketplace for the reason 'Can't connect right now, check your internet connection'. The strange part it, I am completely on perfectly fine working internet that every else works smoothly on. I don't understand how to deal with this problem and why MCPE can't find internet when I am clearly connected

Thanks for any help!