Can someone help to figure out what is this error from Exchange 2013 Application Logs. Due to this some user can't login to OWA. Restarting IIS didn't help.

<The number of OWA requests encountering HTTP status code 500 is 796, which exceeds configured acceptable value of 500. Current timestamp: 4/21/2015 6:20:00 AM, Number of errors every minute in the last hour are as follows: 12,19,11,18,13,12,12,13,15,13,2,0,0,12,15,13,11,12,12,12,8,16,14,15,15,28,15,15,14,13,16,15,18,13,12,16,13,12,12,14,14,13,12,12,13,13,17,15,15,22,15,13,11,17,12,16,10,12,12,11,.>

<The number of requests for app pool Owa encountering Http error code &gt;= 400 is now 220, which is less than threshold of 20 percent of total requests in the last hour. Total request count is 1101. History of requests encountering errors in the last hour is: Current timestamp: 4/21/2015 8:03:00 AM, Number of errors every minute in the last hour are as follows: 3,3,4,3,9,3,4,4,6,4,5,3,4,2,3,1,2,3,3,2,2,3,1,2,3,2,2,3,1,4,3,3,2,3,2,3,7,4,4,4,3,10,8,2,3,6,12,4,4,4,5,3,3,2,4,3,3,5,6,1,.>

Thanks,

Uddan

• Edited by Uddan Tuesday, April 21, 2015 8:33 AM Additional details

Hi Lynn-Li,

Thanks for answer. Found out it's related to this article.

https://social.technet.microsoft.com/Forums/exchange/en-US/777b51ee-330d-43cc-a56e-4614d44aed7b/unable-to-access-owa-or-ecp-something-went-wrong-or-500-unexpected-error?forum=exchangesvrclients

BR,

Roldan

• Marked as answer by Uddan 35 minutes ago

Hi Lynn-Li,

Thanks for answer. Found out it's related to this article.

https://social.technet.microsoft.com/Forums/exchange/en-US/777b51ee-330d-43cc-a56e-4614d44aed7b/unable-to-access-owa-or-ecp-something-went-wrong-or-500-unexpected-error?forum=exchangesvrclients

BR,

Roldan

• Marked as answer by Uddan Friday, April 24, 2015 6:52 AM