Exchange 2013 not working through iapp template

Hi Cleophus,

If the health monitors are marking the pool members down and there were no changes made on the F5 then my guess would be that either the upgraded exchange servers aren't responding to the health checks at all or they aren't responding with a response that the health monitor is expecting. My recommendation would be to review the monitor settings (send string and receive string) and then take a packet capture of the monitor traffic to see how the server is responding to the health checks. The following article might be useful as well.

K12531: Troubleshooting health monitors

https://support.f5.com/csp/article/K12531

-Nathan F