This post is going to be short and sweet as it's something I meant to put up here when I found it sometime back in mid-2011. I'm not even sure if Time Warner is still using these Ubee cable modems for their RoadRunner offering, but I'm sure that there are at least a few people out there who still have them. When you get the modem installed initially, they give you some default credentials. Something like user/user or admin/admin. Using these credentials, you are able to access the device and many of the features that it has to offer you. What you are not able to do is access the menus where you can change how the router is actually configured for internet access, change the master password, or prevent Time Warner from accessing your modem, and subsequently, your network. To fix this, you just need to know the following secret...
The real administrator username that comes configured on these modems when you get them from Time Warner is the last eight digits of the unit's MAC address sans the colons separating out the values. This is unique to your device, but can be found pretty easily by looking at the user interface that you do have access to. The password for this user is "c0nf1gur3m3". Use that and you should be in. Feel free to change the password while you're in there to keep the Time Warner folks out.
One other kinda secret thing to node is that if you do want to change how the router is configured for internet access, you will need to go to http://192.168.0.1/TlModeChange.asp on your router to do so. Once there, you can change it to Bridge mode, NAT mode, Router mode, or NAT Router mode depending on what you are looking to do with it. Hope you enjoyed this simple solution for getting the real administrator access to Time Warner RoadRunner's Ubee cable modem.
***Update: If the above isn't working for you on Time Warner Cable, try username "admin" with password "cableroot".