Overview
This article goes over how to open up Windows Firewall for Predator Secure DNC on your Windows-based CNC machine.
Windows XP Firewall Rules
- Open the Windows Control Panel
- Double click Windows Firewall
- On General tab, select "On (Recommended)"

- On Exceptions tab, click Add Port…

- For Name, type "Predator Secure DNC – 8190"
- For Port Number, type "8190"
- Select "TCP"
- Click OK
- Click Add Port…
- For Name, type "Predator Secure DNC – 8191"
- For Port Number, type "8191"
- Select "TCP"
- Click OK

Windows 7 Firewall Rules
- Open Windows Control Panel
- Double click Windows Firewall
- Click Advanced Settings
- Click Inbound Rules (left panel)
- Click New Rule… (right panel)

- Rule Type
- Select "Port"
- Click Next
- Protocol and Ports
- Select "TCP"
- For Specific local ports, type "8190,8191"
- Click Next

- Action
- Select "Allow the connection"
- Click Next
- Profile
- Check all boxes
- Click Next
- Name
- For Name, type "Predator Secure DNC (TCP 8190, 8191)"
- Click Finish
- Click Outbound Rules (left panel)
- Click New Rule… (right panel)
- Rule Type
- Select "Port"
- Click Next
- Protocol and Ports
- Select "TCP"
- For Specific local ports, type "8190,8191"
- Click Next
- Action
- Select "Allow the connection"
- Click Next
- Profile
- Check all boxes
- Click Next
- Name
- For Name, type "Predator Secure DNC (TCP 8190, 8191)"
- Click Finish