Possible solutions:
*Disable your antivirus & firewall, then re-install again.
*Add main.exe to the safe list of your antivirus + firewall.
*Try using AutoUpdateTool.
*Use CCleaner to clean your PC registry.
*Check if you have the latest version of your PC drivers.
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Probably solution for your problem could be reseting your computer's DNS Cache.
How To: Flush Your Local DNS Cache
*Windows Vista/Windows 7:
•Click on Start, followed by All Programs, and then Accessories.
•Right-click on Command Prompt and choose Run as Administrator.
•In the Command Prompt window type in the following command and press Enter:
ipconfig /flushdns
•If all goes well, which it should, you will see the following confirmation message:
•Successfully flushed the DNS Resolver Cache.
*Windows XP
•Click on Start, followed by All Programs, and then Accessories.
•Click on Command Prompt.
•In the Command Prompt window type in the following command:
ipconfig /flushdns
•and press Enter. You should see the following confirmation message:
•Successfully flushed the DNS Resolver Cache.
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If anything of this list fix your problem, try with that:
Just check with your ISP (Internet Service Provider) and request your Internet Provider to check the access to DNS: connect.infinitymu.net and if they blocked the IP behind it try to ask them to unblock it because we haven't done any malcious traffic or harmed any of their networks in any bad way. It is a mistake.