I have the same problem

1. XP
2. McAfee
3. 512
4. 70G
5. broadband
6. Webstar
7. Connecting from home
8. LW 8.1.2 Java 1.5.0_02
9. ISP is blueyonder
10. LW worked in the past but now i get the following error message

LW was unable to set up a port to listen for incoming connections. Some features of LW may not work as expected.

Many thanks