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I have problems with my cable too.. i set my computer up upstairs (was downstairs with very little problems) and i think this cable wire is having problems..

[/ QUOTE ]The signal strength needed for effective internet connection is different thanthe signal strength needed for TV connection. Splitting the signal multiple times is unlikely to cause problems for TV, but it may for internet. There is likely an extra split or two between the downstairs outlet and the upstairs outlet.