Windows users needs to sync the time.
Right click the clock on your start-menu toolbar, and select Adjust data/time,
Go to the last-tab - Internet Time, and click Change settings... button,
Check ON the little-checkbox and click the Update now button.
If you have firewall (or PeerBlock) blocking either one of those servers, unblock them:
time.windows.com time.nist.gov time-nw.nist.gov time-a.nist.gov time-b.nist.gov
alternatively add (just copy&paste it)
services.msc (from Start-Run) and see if the service
Windows Time) is set to either
Manual - but NOT
Try again, adding
ntp.ubuntu.com seems to fix the problem for me.
You might want to use a longer timeout value (6 minutes should work fine..).