Blue

i have 2 computers and an xbox 360. the computer i go on to play and do stuff on doesnt seem to be able to connect to the internet. the xbox 360 and the computer upstairs seem to have it fine. now that you know where my computer is can you tell me why its doing this or what cord might be unplugged?
i looked at my router and its plugged in, and me and my bro go through that and try to make sure everythings plugged in. but nothings seem to be working.
so... im at my moms house typing this and if you guys cant help me then well you'll be seeing half as much as me...

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