When you start your LW, do you simply search the topics to downld in order to rebegin their downld or do you use the resume/find sources button on all files at the same time? The latter can cause problems on some people's systems since it tends to stress LW, the computer & possibly the connection (for some people.) See the following link & follow “ALL” the off-shoot links to find hints & extra skills to help solve your problem: To continue files downlding (click on link) If your answer to my 1st question is option 1, then I'm not sure. Did this happen with previous versions you used? Which version of LW are you using? Is your firewall configured to allow LW full access? BTW do you also have Norton firewall? How is your Norton AV set? For manual or automatic checking of files? It might be getting activated everytime you start to downld a file. Maybe better to check files after they've completed downlding.