If the cameras continue to connect with the previous version of software but don’t in the latest version then the software is probably being blocked by the Windows Defender Firewall. Although Vicon officially specifies that the Firewall should be turned off completely to ensure unobstructed communication with the cameras and connectivity devices, sometimes institutional protocols mandate it to be turned on. If this is the case:

1. Go to Control Panel > Windows Defender Firewall and click on Allow an app or feature through Windows Defender Firewall.
2. Scroll down the list of applications to look for the instance of Vicon software (Vicon Nexus, Vicon Tracker, Vicon Shogun, Vicon Evoke).
3. Select the application and click Details to ensure it refers to the version you are trying to run.
4. Click on Change Settings to enable the networks (Domain, Private, Public) that match those of the previous version. If this option is disabled then please contact the system’s administrator or your institution’s IT personnel for assistance.
5. Click OK.
6. Restart the Vicon software.

If this does not resolve the issue then please contact Vicon Support.