VMware Horizon Community

Failed to connect to the Connection Server - web access with Firefox

Error message is intermittent, direct access to connection server, no balancer. Any idea?

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VMware Employee
VMware Employee

This is probably related to Origin checking. https://docs.vmware.com/en/VMware-Horizon/2106/horizon-security/GUID-94DAC7B8-70A3-4A91-8E70-2B2591B...

What entries do you have in the locked.properties file? (Note that you have to create this file)

To test this:

  • You can turn off Origin checking by adding checkOrigin=false to locked.properties.
  • If this is running Horizon 8 2106 then Cross Origin Checking will be enabled by default. You can add enableCORS=false as well to turn that off.

Ideally you should be leaving those on though, so only do the above as a test to prove it is origin checking causing this. You should then remove them and look to add the following entries instead:

  • balancedHost = <load balancer FQDN>
  • portalHost.1=<uag1 FQDN>
  • portalHost.2=<uag2 FQDN>