ECP and OWA problems after upgrade Exchange 2013 CU2 to CU23
Hi, I have 2 Mail servers and 2 Client access servers. The 2 mail server have the back end configured, and the 2 client access the front end on IIS. I've upgraded w CAs and two mailoboxes to the last version of excchange 2013 CU23. Finaly when I finnished the upgrade of last server. The ECP and OWA stop working. I am able to supply my login credentials, but when i click on 'sign in' i just get the below error. / https://localhost/ecp / Server Error in '/ecp' Application. Runtime Error Description: An exception occurred while processing your request. Additionally, another exception occurred while executing the custom error page for the first exception. The request has been terminated. I know that iIt's easy to find many solutions for that problem, but none works. I've tried to use scripts: UpdateCAS.ps1 UpdateConfigFiles.ps1 but there are errors during executing these scripts. I've tried to recycle the App pools I did restore one CAS server and ECP works only only ones on first start . Second start was failed. Please tell me what should I do now.Heeelp.