Monday, September 15, 2014

SQL Server Reporting Services (SSRS) and HTTP 400 Bad Request (Invalid Hostname)

If iis (Internet Information Services) is stopped and SSRS (SQL Server Reporting Services) is kept running, you will receive HTTP 400 error with message Bad Request (Invalid Hostname) for any sites that was accessible under the same iis host.

This is bad if you are running under a LB (load balancer) and users accessing the site will start getting the 400 errors.

Only solution is to be sure you stop or start iis and ssrs at the same time. You cannot have one stopped while the other is kept running.

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