First "maine.rr.com":
https://answers.yahoo.com/question/index?qid=20060629085522AAaWFZQ
Road Runner via Time Warner - does that make sense with respect to your location and ISP?
How are you connecting to the internet:
modem ---> pc (direct)
modem --> router ----->pc
modem/router ---->pc
Wired or wireless?
Most likely the router or your pc's adapter has been configured to default to maine.rr.com
Do you have admin rights to your router? If not you may need to get the router's admin person to help you.
Can you run and post the results of "ipconfig /all" (without quotes) from the command prompt?
That information will help understand the current configuration.