I've had the same for two days as well. I've already done everything I could, including re-loading everything, and still nothing works. I think maybe tomorrow call the samsung hotline and ask what's going on. If you think of something, write it.
Added after 2 [minutes]: But I think maybe there was some update that screwed up. I have two samsung phones and, oddly enough, I can log in on one and not on the other, it's the same as on TV. I noticed that I have different android versions on them and, surprisingly, both are supposed to be the latest, maybe there is a problem with that. Damn already knows ....
Added after 1 [minutes]: I am also furious because all Sunday with a hangover I can not comfortably watch anything