Dear wiseden40 ,
You may try the following :
1. Disable firewall. (This you have already done)
2. Run an Anti virus software.
3. Scan window registery & fix if there are any problems.
4. Un-install & re-install TL. (Take a backup before un-installing)
If nothing fruitful happens...then contact Customer Care.
They would probably ask for the latest log files of TL.
The TL experts would be able to guide you further.
Have you recently changed your ISP ? If you think, that the problem might have started after changing the ISP....then better contact them.
regards
Umang Midha
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http://stores.ebay.in/IndConcepts
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best regards
Umang Midha