Set the "Startup type" to so it launches correctly on future reboots. 3. Verify the Network Connection (For Network Licenses)
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. Major updates can sometimes reset security settings or break drivers. After a significant Windows update, test AccuMark promptly to catch any issues early.
If the dongle is plugged in but the light isn't blinking or the software still can't find it, you likely have a driver issue.
If you have recently upgraded AccuMark, your old dongle may need an updated license file or even a physical key replacement. For AccuMark V12.1.0 and beyond, a new license file must be applied to the existing key. For version jumps from very old releases (e.g., pre‑V10), you may need to contact your local support representative to arrange a key exchange. a valid accumark license was not found for this product
Check that your Firewall isn't blocking port (the port used for license communication).
The software version installed does not match the version permitted by the license, or a time-limited subscription license has expired. Step-by-Step Troubleshooting Guide
. If you are using a hardware key, ensure the USB dongle is firmly plugged into a functional USB port. Try a different port to eliminate the possibility of a faulty connection. If you suspect the port itself is not working, you could also try cleaning the USB sockets with a can of compressed air.
If your organization uses physical USB dongles (often labeled "Sentinel" or "HASP"): Set the "Startup type" to so it launches
. In shared or virtualized environments (like those provided by educational institutions), AccuMark has specific shortcuts to log off and release a license if the application was closed without proper logout. Look for these shortcuts or an automatic script that releases the license when AccuMark is stopped.
: If your organization uses concurrent or network licensing, the workstation must be able to "reach" the license server. Server Connectivity
Reconnect your dongle, wait for the Windows notification that the device is ready, and launch AccuMark.
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AccuMark uses Windows Environment Variables to find the license. If these are missing or wrong, you get the "valid license not found" error.
For network concurrent licenses or cloud licensing, the local machine cannot reach the license server due to internet drops, firewall blocks, or incorrect server IPs.
Before diving into the fixes, it helps to understand why AccuMark throws this error. Gerber uses two main types of licensing:
Wait a few minutes, click on in the left menu, and see if the network license now appears in the list. 5. Adjust Windows Firewall and Antivirus Settings