Please verify your system time and date are accurate.
Since the NRnR did not help your situation any, I would suggest you attempt a clean install of N 360:
If you use Identity Safe for your Logins, please back it up (export) the data so it can be Restored (Imported) after you install a fresh copy of N 360.
Plese remove the copy of N 360 you have installed, using the Control Panel uninstall via Programs & Features.
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