EXFO FTB-500 (Window XP) - Manual (Page 151)

Managing Data
FTB-500 141
Connecting to a Wireless Network
3. If it is not already done, configure the firewall as follows:
3a. From the main window, select the Tools tab.
3b. Tap Control Panel.
3c. Tap Windows Firewall.
3d. Select the Exceptions tab.