As with most HTTP response codes, it can be challenging to determine the exact cause of a 504 Gateway Timeout Error. 'When servers communicate with clients, servers will configure clients to use enhanced mode.' hmm.A 504 Gateway Timeout Error is an HTTP response status code indicating that a server currently acting as a gateway or proxy did not receive a timely response from another server further upstream.

52: 'After the services are restarted, the View Connection Server instances reconfigure the message security mode on all desktops and security servers, changing the mode to Enhanced.' The upgrade guide also mentions desktops.

I guess that answers that - view agent must need to be at 6.1 as well. After all View Message Bus Component services have been restarted, the system begins changing the message security mode to Enhanced for all desktops and security servers.Īlso, in the same article: If you plan to change an upgraded View environment from Enabled to Enhanced, you must first upgrade all View Connection Server instances, security servers, and View desktops to Horizon 6 version 6.1 or a later release. Under 'Enhanced Security Status', it says. Is changing the message security mode even necessary? What good is it, really? The KB article makes it sound like its fine to leave on the 'Enabled' setting. but I wonder if it would cause issues with older versions of the view client? I would think it would not, but I worry a little. That shouldn't be a problem after re-composing the pools. It states 'View components that predate Horizon 6 version 6.1 cannot communicate with a View Connection Server 6.1 instance.'.

The part that concerns me is in KB 2110760. The View 6.1 upgrade guide, on page 51, mentions changing the JMS Message Security mode to enhanced in the post-upgrade tasks section. I also know that after upgrading the connection & security servers, the message security mode will not change automatically, or cause any issues. I know about the firewall change needed to allow port 4002 between the security server and connection server. I am working on an upgrade from 5.3 to 6.1.

Vmware horizon client http error 503