on [Export to Excel] - The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.

Question

From searching Thwack, this comes up again and again. This URL works (graph export page): https:///Orion/Charts/CustomChart.aspx?ReturnTo= ... While this produces the error: https:///Orion/Charts/CustomChartData.ashx?ChartDateSpan=90&ChartInitialZoom=1h&ChartName=APM… Looks to have started after the recent update (2018.4) was installed. I checked the Websites table and found that I now have 3 entries (we don't run more than a single webserver btw) and thew new 'primary' has the server name instead of the fully qualified site name (as configured for the site in IIS), so I reset the ServerName and FQDN and reset all services - followed by a server restart - but it made no difference. Any suggestions?

frak · Accepted Answer

Well I never got an answer as to what was driving this, however a SW software update has fixed it.