I thank Adam 1115 for his original post on this matter, and I hope by re-posting this information I can help others. Re-Hashed: How to Fix SSL Connection Errors on Android Phones Lets Start with SSL/TLS Certificates. I went back to the server ECP and assigned the 3rd party SSL to IIS and all was once again well with the world! Netsh http add sslcert ipport=0.0.0.0:444 certhash=123123123123123 appid=””Īfter following the above instructions the server rebooted and all services were accessible again, however the system switched back to the self signed certificate. Replace certhas with the certificate hash and appid with the application ID you saved in notepad. Netsh http delete sslcert ipport=0.0.0.0:444 – Run this command- (Yes, I know there is no :444 listed in the output from the earlier command.).Under IP:port : 127.0.0.1:443, note the certificate hash and application ID.

– This will show the certs, copy and paste this information into notepad.

The error status code is contained within the returned data.” Details: Microsoft SQL: A connection was successfully established with the server, but then an error occurred during the login process. In the system event log, you see hundreds of id 15021 on the source HttpEvent that say “An error occurred while using SSL configuration for endpoint 0.0.0.0:444. Y ou have an exchange 2013, after some unknown event nobody can get to OWA or ECP (or any other IIS based resource including outlook.) Instead, users get a login screen then a blank page. STEP 2 – Ask Google for help -Event ID 15021įinally I found Adam1115’s blog and read this short article which pertained to Exchange 2013 : ( LINK) I attempted to reassign the SSL cert in IIS manager and then an IISRESET but it didn’t help. please check if there are firewalls or other devices issues in your env. The wireshark logs show some tcp retransmission issues, look like server side might not receive the packege correctly so that no server hello response in the server side during ssl handshake and dropped the connection. Launching my browser and a quick Google search lead me to believe there was an issue with the SSL certificate I applied to the server a few weeks before. The client use default ssl GPO setting, so this is not the problem.

Immediately opening the System log I found 100’s of Event ID 15021 over and over about one per second Event 15021 I began to panic a little because this is probably the IT guys worst nightmare! Working in the industry for over 20 years I put my panic aside and began my standard troubleshooting procedure.

I didn't believe it to be a SQL problem, but I'm out of ideas here. OWA and ECP both showed BLANK white screens. I checked the vNICs and that all seems ok, I was able to remotely connect to some of the subsystems (Event Log, for one). Shortly after reboot I attempted to open Outlook and it failed with a server unavailable error.

Last night during a maintenance window I applied my Microsoft updates and rebooted the server. There have been a few hiccups along the way however for the most part the experience has been good and user disruption minimal, until I encountered Event ID 15021. If you have been following my blog, I recently migrated my Exchange 2010 server to a new 2016 server.

Error occurred while connecting to ssl