We have this television 42PFL9664H,

a time ago i had to change the internet connection
to a WEP key internet instead of WPA.
Now is net TV (RTLGEMIST) very slow and is sometimes hanging (sorry i'dont know the right word in english)

and also the player menu (where you can see if its playing or on pause) is still on the screen.

Is it the WEP key that is the reason for all this?

Sorry for the bad bad english