List Update Errors - NN 5.1.2

Net Nanny 5.1.x • 8 February 2011

This article refers to an older version of this product.

Make sure to allow Net Nanny in your firewall if you have one. Allow NNSvc.exe and NNTray.exe.

If that does not work, you will need to uninstall and re-install Net Nanny to fix this problem.

Before you reinstall, it is a good idea to go to the Start Menu and do a Windows Update. During download and installation, please make sure that all other programs are turned off on your computer, especially anti-virus software. Also, please make sure you are logged on to the administrator account when you install and configure Net Nanny.

If you have the CD, use that to re-install.

If you purchased from our website (, you can re-download the software from You will need your order number and password or the last 5 digits of the credit card and the email address you used when you originally purchased the software. If you have any questions about your account, please email us directly at

If you originally received an unlock key or serial number, you will need to enter that name/key or serial number once you install the software to unlock it. You can find your unlock name/key, or serial number from

If you purchased a CD from a retail store, the serial number or unlock name/key are on the flap of the envelope that the CD came in.

If you purchased the software from a different web site, you will need to contact their customer service for another download.