Could not establish trust relationship for the SSL/TLS secure channel
This week, we received some error message from one website like below:
“The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.”
Our first though was that the website’s certificate may got expired, but actaully the website didn’t use ssl, it was just a normal http site. After further investigation, we found that the issue is caused by that default website on IIS hosted on this server has expired, and this will also caused other website to send out this error message.
Error got rectified after certificate got renewed.
