Something happens between my phone amb my router beacause I can connect just fine and it shows with internet connection, but when I launch youtube (or any other app) I can't load anything. It's not a problem with my phone beacause it works with any other wifi, and neither with my router beacause it works with other devices.
Sometimes, (but not always) when I'm alone, it works perfectly but when everybody is home hardly ever does. I suspect that my sisters phone has something to do with it beacause whenever it works, if she arrives home, it stops working.
I've even tried the router factory reset, moving the channel to a less crowded one and my phone has 2,4 and 5GHz wifi and so does the router.