When a computer tries to use intel WiDi/Miracast, an additional IP would be assigned to the computer. In most cases, one of following IP ranges is used:

• 192.168.137.0/24
• 192.168.16.0/24
• 192.168.179.0/24

Then, the endpoint might listen in on the following ports, so that the display device can connect back to the computer.

• 5353 – UDP
• 7236 – UDP and TCP
• 7250 – TCP

If the security level of the Firewall policy is "medium" or "high", the display device may not be able to connect back to computer. As a result, some exceptions should be added:

1. Open the OfficeScan server web console.
2. Go to Agents > Firewall > Policies.

   

3. Add or edit the policy.
4. Under Exception, click Add.
5. Refer to following settings to add 3 rules for each IP range:

   Application: All applications
   Action: Allow network traffic
   Direction: Inbound
   Protocol: TCP/UDP
   Port(s): Specific ports: 5353, 7236,7250
   IP address(s): IPv4 address: 192.168.137.0, Subnet mask: 255.255.255.0

   If the security level is "high", please add another three (3) outbound exceptions:

   Application: All applications
   Action: Allow network traffic
   Direction: Outbound
   Protocol: TCP/UDP
   Port(s): All ports
   IP address(s): IPv4 address: 192.168.137.0, Subnet mask: 255.255.255.0

6. Go to Agents > Firewall > Profiles.
7. Add or edit the profile.
8. Configure or check the policy and target endpoints.
9. Click Save.
10. Click Apply Profiles to Agents.

For more information, please refer to Microsoft MSDN Library.