Hello everyone.

I've been getting 503 errors trying to connect to our VC6.5 Windows-based server.  The environment is a three-host cluster running a learning environment.  I know the first recommendation is going to be upgrading to a 6.7 appliance, which is valid, but I can't upgrade in place because of domain restrictions and changing the hostname of the VCenter server would break the appliance that creates the labs.  The exact error I'm seeing is

503 Service Unavailable (Failed to connect to endpoint: [class Vmacore::Http::NamedPipeServiceSpec:0x00000287f89b5010] _serverNamespace = / action = Allow _pipeName =\\.\pipe\vmware-vpxd-webserver-pipe)

Any idea what might be causing this?  I'll attach a log bundle in case it helps.

Thanks for any help you can offer.

Derek