im guessing the house has thick walls or something?
have you tried moving the aerial around on the back of the desktop?
by ethernet bridge do you mean a powerline adaptor? if so then all you need to do is get a pair of them, and its a 30 second plug in, turn on, connect the plugs to your router and desktop and away you go.
the adaptors themselves are pretty generic, i run mine from downstairs from my modem, to my room upstairs and connect it to my router.
what i would say is if you are going to buy a set, do so from a shop with a decent return policy, just so in the event that it doesnt work you can always take it back, but from my personal experience it was so simple to get working.
hmmm, i think were talking about the same thing, i was looking around best buy and it was called an ethernet bridge, but yea, not sure why my desktop doesnt work but laptops can get internet
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