Since some versions we have a problem with the Universal GUI after updating. The setting "requestFiltering removeServerHeader = true" in the web.config file causes a 500.19 HTTP error when starting the Universal GUI.
If we remove the lines below from web.config, the problem is gone.
<requestFiltering removeServerHeader = "true" />
The problem is also present with the most recent update.
Best answer by Mark JongelingView original