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# The auto update license feature in the CathexisVision is not working. It says it is failing to connect to the license server?

|| **Question**

The Auto update license feature in the CathexisVision Licensing section is not working.Whenever i try to update licenses it says it is failing to connect to the license server.


| **Answer**
The administrator need to allow outbound network access from your NVR unit on TCP port 30016 to the public server called : licenses.cat.co.za



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