Sorry, don't understand.
"Disabled" ? In the wireless section of your router setup
most of the time you can choose which 'services' and or
ports a 'memberlist' (with IP-numbers of your PC's / laptops)
they may use. Then you can ENable a port. Guess port 80 or
8080 is used for internet youtube. Maybe a conflict ?
My experience says; Remember/write down all the ports you
opened and FACTORY reset the router. Then try again. After
that you can put your ports back. Can't think of an other
solution nor what this problem can be.
Greetzz, Peter