I need help......I just cannot connect to the internet after changing my passcode.

Hello all,
I feel extremely stupid. Today I was changing my seetings in the http://192.168.1.1 page. But when I clicked OK I lost connection and when I try and put in my new passcode it connects to the access point but the internet cannot be found. I can only imagine that i typed the passcode in incorrectly. Now i am unable to connect to http://192.168.1.1 even when I am using my wired connection as I presume I need to be connected to my wireless router. Is there any way of changing the passcode? Can I restore the factory settings? Please help....I feel as though I may have made a huge mistake .
Jon

if you connect the PC to the router directly using a cable would you be able to get online???

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