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Exchange 2013- Blank ECP / OWA screen, event ID 15021 HttpEvent in system event log

Posted by viralr on February 20, 2015

Exchange 2013- Blank ECP / OWA screen, event ID 15021 HttpEvent in system event log : An error occurred while using SSL configuration for endpoint 127.0.0.1:443 :

When you log in to OWA or EMC using a browser, you may see a blank screen after you enter your credentials. You may also notice that the event log shows event 15201:

An error occurred while using SSL configuration for endpoint 0.0.0.0:444

empty page

This can be caused by an incorrect certificate being assigned to the port. To fix this error,

  • Open the Command Prompt
  • Run – netsh http show sslcert

InvalidCert

  • Copy and save content on notepad or take a screenshot of port 443’s certificate hash and application ID because we will need it.
  • export content
  • Delete the certificate causing errors (Given on Screen Shot)
  • netsh http delete sslcert ipport=0.0.0.0:444
  • delete-certificate-causing-errors
  • Read out the certificate hash from the certificate

certificate-hash

  • Assign new certificate: netsh http add sslcert ipport=0.0.0.0:444 certhash=XXXXXX  appid=”{XXXXXXX}”

    add cert

  • Do IISRESET OR REBOOT the server
  • Good luck!
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