Today we've configured our new exchange 2016 servers via our kemp appliances. All services are configured with individual VIPS, so not using SubVS.
Disabling the real servers and VIPS works fine no issue. ECP is able to be accessed fine.
When shutting down the Exchange 2016 servers, ECP is unavailable and I receive an error http 503 service unavailable. I'm able to hit the healthcheck at /ecp/healthcheck.htm and can see that the results are redirecting me to a active server. However when using ecp.mydomain.com/ecp i get service unavailable.
Is their any settings that i need to consider, not sure on why its causing this error.
Any help on this would be great.