NEC Express5800/320Fd-LR User Manual page 317

IMPORTANT:
Install the Active Upgrade software before configuring Windows Firewall. The installation
process adds an entry for the Active Upgrade Console to the list of Windows Firewall exceptions.
This entry is disabled by default.
To configure Windows Firewall
1. Open the Windows Firewall control panel.
2. Click the Exceptions tab to display the list of exceptions (see below figure, "Windows
Firewall Exceptions").
3. Click the check box next to Active Upgrade Software to activate it.
4. Click OK to enable this exception and close the control panel.
Windows Firewall Exceptions
Installing and Using Utilities 5-99