Just unplug the cable running from the modem to the router and the power to the router. No need to reset the modem.
I have to reset it, I do not even know the password.Also, its a all in one, meaning the router is combined with the modem.
I can't find anything on how to actually reset but maybe this manual could help you find whatever youre looking to fix;http://www.arrisi.com/support/documentation/user_guides/_docs/tg862g-na_user_guide_standard1-3.pdfgo to page 45
Ok I know what to do, but will it change my Network name for my wifi, and the Wifi password?Reasons for doing this is simply because My father has no clue what the password and username to it is.
yes it will. you'll probably have to consult the manual again to get it all set up. Did you try the defaults for the login, it's most likely just that.
Maybe you could get on the phone with Comcast then?
Eh don't really want to, its 11PM here, my dad reset it a while ago, but didn't do it properly, hes supposed to hold down the reset button for 15 seconds, but he only like clicked it.
That means all the settings are the same and it just started up again, right?