Given that these are security servers with a load balancer (F5) in front. I would lean towards the possibility one of the security servers may be the source of the issue and random incoming users are assigned to it.

I would double check in the View Administrator that the URLs match exactly what is on the SSL cert for each security server and each connection server. Next, verify that the certificate being used has a friendly name of 'vdm' on each security and connection server.

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everything checks out with the URLs and Certificates. This issue just popped up and everything has been working for quite some time. We have verified both security servers are taking some connections without issues. It just a select set of users having the problem. We'll be gathering more info in terms of what OS these users are running and what version of the client.

Thanks for checking. Have you checked the VMware log files on the Security Servers or Horizon View Client? They will usually show at least the login attempt before the failure occurs and may contain some clues. I have used these and other view logs to troubleshoot difficult to diagnose issues.

Here is a link for all View Log Files: Location of VMware View log files (1027744) | VMware KB

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Great to hear, it can get complex when troubleshooting external user access.

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What should I do now ? Do I need to Install this software again