need to network my daughters comp to mine using cable on mine. which is more likely to work better... physically connecting w/ 20 ft + ethernet cable or wireless using a router. the router slowed down my connection last time i tried it but my friend says a long ethernet cable would slow it down worse.1 person needs an answerI do too

A wired connection will typically transfer data faster than a wireless connection, but that shouldn't make a difference unless you regularly transfer large amounts of data between the computers.An Ethernet cable can be up to 328 feet long. A 20-foot cable won't slow anything down unless the cable is defective.Boulder Computer Maven Microsoft Most Valuable Professional

I would recommend using the cable to connect the two computers together.The router should not slow down the connection, there may be another problem.Typically a home network is created by connecting stationary(desktop) computers by cable, and mobile (laptop) computers wirelessly. The router is used as a central connection point, and the router is usually connected to an internet connection. It sounds like you have two desktop computers, so I would recommend the ethernet cable, which as Steve said is faster than wireless and can be over 300 feet long. If I helped let me know!