Hamish Watson walks through changing an expired certificate in SQL Server Reporting Services:
This blog post is around the situation where you have SSRS setup to use HTTPS and thus using a certificate and the certificate expires (or just needs replacing). We had caught the initial error via our Continuous Monitoring of the SSRS site — basically when the certificate expired we got an exception and alerted on it.
The client installed a new certificate but the issue arose where in Reporting Service Configuration Manager we went to use the new certificate but when we chose it we got this error:
“We are unable to create the certificate binding”
Read on to see how to get past this.