Knowledge Base

Category: Network Licenses and Software / Network Troubleshooting
Topic ID: 269
Title: Access to Network License Manager Blocked By Firewall on Windows XP Machine
Created: 0000-00-00Last modified: 0000-00-00

SYMPTOM: Workstations can not get the license after server computer running Windows XP had been upgraded to service pack 2 (SP2).

CAUSE: SP2 is automatically installing and enabling personal firewall on the server computer.

RESOLUTION: Personal (local) firewall is a good thing. It is likely to prevent trojans or worms from propagating on your network.

When using a personal firewall a specific port will need to be opened to allow free access for the license manager to function properly.

  1. Launch the Control Panel found under the Start Menu
  2. Select the Windows Firewall icon
  3. If the firewall is on, click on the Exceptions tab
  4. Click on the Add Port button under System Variables
  5. Set the Variable Name to: SENTINEL TCP, with a Port Number of: 5093, and leave the toggle as TCP. Click OK.
  6. Click on the Add Port button under System Variables, again.
  7. Set the Variable Name to: SENTINEL UDP, with a Port Number of: 5093, and toggle UDP. Click OK.
  8. Click OK in the main dialog to accept the changes.

Verify that the new rules have worked.

A PDF file containing the instructions, with images, is attached below.
Links:
Attachments:
License Retrieval Blocked By Firewall.pdf
Keywords:
Windows XP
winxp
network
License