Do you run PestPetrol or similar spyware program. Some spywaer programs do not work properly, & may think LW has spyware so attack it & remove vital organs so it doesn't work anymore.

Yuk!

May I ask which spywares or adwares you use?

Recommended are these 1. ad-ware (FREE), & also this one 2. Spybot - Search & Destroy (FREE)

Perhaps I"m on the wrong track but by your topic heading, it sounds like the issue. Normally, set up your firewall & router/modem before installing LW; tips here Connection problems? Check here first! (click on link)