Can you give us a total desciption of your set up:
1. How much ram?
2. Hard Disk space available?
3. Where are you trying to connect from (home, school, work, etc.)?
4. What version of Limewire (LW) do you have? (Go to LW's menu Help>About LW...) Will show both LW.
5. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up.
6. Do you use the Resume/Find Sources function on all your files after you start LW?
7. Do this test: Bug Report instructions & sample image Is the result True/False?

8. How long has this problem been happening? How long have you been using LW? And has the present problem only started with the present version or earlier?

9. Have you checked to see if your model needs any firmware updates: http://www.speedtouch.com/support.htm

10. Are you using the modem through your USB2 port? Or your USB1 port? USB1 (such as your keyboard uses) will be too slow & unreliable.
Ethernet modems are much faster & reliable than USB.