Configuring two or more PSC 6.5 nodes behind a Load Balancer can be done to provide High Availability to the PSC services.
This can be useful to have a central PSC HA pair and have multiple vCenter Servers registered against the PSC HA pair for enhanced linked mode.
It would also be required if using vCenter HA with an external PSC, otherwise you’re only providing HA to half the vCenter Server instance.
I hope this guide helps perform the setup with ease and clarity.
have you tried reinstalling? 