Try resetting your winsock. In command prompt, type "netsh winsock reset" and enter. You will have to reboot.
No luck.... See if you can get the download to complete in safe mode with networking. If you have no issues in safe mode with networking, it is likely a program you have installed is blocking you.
Also, do you have any download accelerator installed?(do not install one, I just wanna know)
The internet interprets censorship as damage and routes around it.
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Those who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety
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