Exchange 2010 CAS connection issues after server reboots

Hey All,

 

 

Ponder this.....

 

After rebooting a new commissioned Exchange 2010 infrastructure behind a F5 LTM, some 'bad' computers aren't able to connect to Exchange. Once a host file is dropped onto these 'bad' computers which points direct to CAS Array, everything works fine. After using a host file for awhile, I can remove it and the everything works via the F5.

 

 

This issue affects RPC and HTTP(s) connections from a 'bad' PC. Outlook won't be able to connect. IE will get to a OWA form based authentication page and upon entering credentials you will be a generic server error page.

 

We are re-bridging SSL.

 

We are using the LTM v11.2 with the lates iApp.

 

Any suggestions? Persistance? Certificate\authenication issues?

 

 

:)