The UEM of Dyntrace 5.6, 6.x bandwidth calculation doesn’t work on IIS Server when the static content is disable, the UEM signal url "/dynaTraceMonitor” doesn't work well, and gets 404 error.
IIS Server considers anything with text/plain in the header as "static content". In order to installing the Static Content role service if it does not. Please go to IIS Server Control Panel -> Server Manager -> Roles-> Web Server (IIS) node from the left pane -> scroll to Role Services window -> see if the Static Content role service is installed.
since AppMon 5.6 the dynaTraceMonitor payload is sent in the POST body and therefore the JS agent must set the content-type header: Content-Type: text/plain;charset=UTF-8 When the Static Content is disabled on the IIS Server, the post body with such content-type would be blocked out.