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Today ive watched 3 films from iTunes in hd
Streamed no probs
So why is utube so hit n miss ?

Also, do a speedtest when you have a good connection and then when you have YouTube problems and see if your bandwidth is an issue. Local speeds ebb and flow throughout the day due to usage within your locale.

At least if you can prove that the speed has nothing to do with it, you can start nailing down some in-house problems, such as interference.
 
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