Hello, I have a lynksys router. Everything has been working fine with the xbox and the 2 computers i have. Now all of a sudden if the xbox is running i cannot connect to the internet on the pc directly connected to the router, but if the xbox is off i can. is this a router problem
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Sounds like an IP clash. Check TCP/IP Properties.
In the affected computer: Start, Connect To, Connection, Properties, Scroll Down TCP/IP and highlight, click Properties and check that Obtain DNS and IP address automatically are enabled.