For a couple of days I lost my internet connection. I called Roadrunner and the support person had me turn off my virus protection (Trend Micro Pc-Cillin). After I did that, I got my internet connection back. However, every time I restarted my virus protection software, I lost my internet connection.
I tried to contact Trend Micro but couldn't find a phone number so I sent them an e-mail but never got a reply. I uninstalled my Pc-cillin and reinstalled it and now everything is fine.
The reason for this post is so that, if anyone has the same problem and does an internet search (like I did a thousand times), this might help them.