That's great news, glad to hear it. Believe me I have spent many hours chasing my tail on this forum and elsewhere trying to determine solutions for such problems and a good percentage of the time it is third party software (antivirus/security suites, firewalls like Comodo or ZoneAlarm, of network management software from various vendors (hardware manufacturers or software products). And even when they are apparently uninstalled often some small piece is left that causes these types of issue, I will always remember a similar issue when Windows 7 had just been release to manufactuer, a friend was having a similar problem and there was nothing installed on his computer that was an evident potential cause. He mentioned that he had installed and removed AVG and just as a shot in the dark I ran their vendor specific uninstaller and BAM, his problem was cured. Sometimes it's hard to convince people to uninstall these programs but it is generally worth the effort.
Anyway, thanks for the follow-up and posting back and updating your thread with your solution. Glad you were able to resolve it.
Best Wishes
Randy