[ubuntu] failure to connect to internet occurs only at home

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http://ubuntuforums.org – hello all, i have a problem connecting to the internet at home, but have no problem connecting to the internet in other places. My computer connect ot the router but does not receive a connection to the internet form the router. this happens both wireless and ethernet. at the same time everybody elses computers (using windows) connect to the internet in my home. i have tried switching between two wireless cards, had the same problem. this makes me think it has something to do with the router itself. i use a Planet WRT-413 router. thanks noam (HowTos)