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Overview

If you encounter problems with your network license, that can be due to:

  • problems with the drivers of the security key (dongle protecting the network license).
  • problems with the “Sentinel LDK License Manager” service

Prerequisites

  • Verify that no other applications are running.
  • You need administrator rights. If you are not administrator of your computer, get help from your network administrator.

1. Make sure the most recent driver is correctly installed

How to download and install the driver for the security key (dongle)…

2. Verify if a firewall or antivirus-software is blocking the “Sentinel LDK License Manager” service

Make sure that your Firewall allows incoming TCP connections on port 1947 on the computer/server hosting the security key, and outgoing TCP connections on port 1947 on the computers running the software.
-> You might want to temporarily turn the Firewall off, in order to see if the problem is Firewall-related or not.
Make also sure that no anti-virus program is blocking the “Sentinel LDK License Manager” service.

3. Verify if the “Sentinel LDK License Manager” and “Hasp loader” services are running and stop conflicting services

1. On the computer/server hosting the security key: Enter http://localhost:1947 in your Internet browser.
-> The Sentinel Admin Control Center should be displayed.

2. If there is an error, we recommend that you re-install the driver. Please see how to download and install the driver for the security key (dongle).

3. If you still have problems, try to find out if there are conflicting “services” running on port 1947:
Click on the Windows Start button. Type “taskmgr”, and press Enter. The “Windows Task Manager” is displayed.

Find the services “hasplms” (“Sentinel LDK License Manager”), and “HASP Loader”, and check if their status is “Running”.
If the “hasplms” and HASP Loader” services are not listed, get help from your network administrator, to find out if another service is running on port 1947.

4. If the “Sentinel LDK License Manager” service has been running, but the problem occurs again, right-click on the “Sentinel LDK License Manager” service (in the “Services” window), choose “Properties”, and define the following settings in the [Recovery] tab:
– First failure: Restart the Service
– Second failure: Restart the Service
– Subsequent failures: Restart the Service
– Restart service after: 0 minutes
Click on [Apply], and then on [OK].

4. Re-start the “Sentinel LDK License Manager” service

Use the “Windows Task Manager” or the “Services” window, to start or re-start the “Sentinel LDK License Manager” service.