[other] Router problems, please help.

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http://ubuntuforums.org – Hello everyone. Today I woke up and my Ubuntu boxes could not connect to internet. It said "Connecting" and then "You are now offline". So I thought it is a router thing and I connected directly with a wired modem and it worked. I put the router back and it stopped working. So I reseted it and now when I try to go to wich is were I configure my router a page "Emergency Web Server" appears with a little upload box below it. I googled it and nothing relevant came up. Do I need a file or something to upload it so my router will work again? It is an (HowTos)