Hello to all - This is my first post.
Unfortunately it is on seeking help.

I am experiencing the same issues as nanotubes. I have been a limewire user for about 18 months and have never had any problems. However I recently upgraded to 4.9.23 and at first had no issues. 24-36 hours later however the maximum download speed achieveable is now only 4kb/s!

I am running Xp with:
AMD 2800
1Gb Ram
1mb ADSL Connection
Java J2SE runtime enviroment 5.0 update 3
Norton antivirus and firwall.

No hardware was changed or adjusted inbetween working and not working. The only others changes were some software installs but i have uninstalled these in an effort to fix the problem to no avail.
I have also followed all the instructions in Granpa's link above.

Please help - I'm getting download withdrawl symtoms as we speak

Best Regards

Mark