Dear All,

After deploying CU6 I cant access the ECP console or OWA, I receive the below error:

ECP error:

- 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.

OWA error:

errorFE.aspx?httpCode=500

 :( Something went wrong

Please advise.

Hi Ahmed

Have you replaced the web.config file from the server which has not been updated and see the results

Its always advisable to take a backup of web.config file before doing any upgrade if you have any custom owa page

Mostly replacing the web.config file  from CU5 setup or from server which is in CU5 or earlier will solve your problem

Hi,

Please recreate OWA and ECP virtual directories and re-enable the Forms Authentication for OWA and ECP to check result.

Please check the application log to see if there is any related events.

Best regards,

We have exactly the same problem, after upgrade from CU4 to CU6 :(

ErrorFE.aspx :(

We found temporary solution - going to URL https://servername/ecp?exchclientver=15.

Wait new update for Exchange :)

Found a solution here: (my installation is CU8)

https://justaucguy.wordpress.com/2014/12/01/exchange-2013-cu6-owa-something-went-wrong/