Norbic said:
well, my friend was not tech savy so he did no more than log into it so he could access the internet. even Centurylink says that is the default ip according to:
http://internethelp.centurylink.com/internethelp/modem-...
I also had access to the page but i forgot the ppp details so i had to plug other modem back to contact centurylink and after that it gave the 404 and 400 errors.
Do you have both routers hooked up to the network? If they both have the same IP you will have conflicts. Do one at a time, do not connect the new router to the network, only to power, and plug in the computer to that one, reboot, then try to get to the setup page on it.