Hi we have Portal for ArcGIS 10.4 installed.
On configuring the web adaptor with the portal, it comes up with error message attached.
It seems that Portal is no longer listening on port 7443. Portal has been configured with HTTPS
This was working correctly before, hence we would want to find out what's caused this issue, rather than simply reinstalling portal.
This seems to be similar to issue reported in
Portal for ArcGIS WebAdaptor Configuration Error
Any suggestions?