If the FQDN for the AMT relay address in the preferences pane has leading or trailing white space, VLC will be unable to open the multicast stream (presumably because name resolutions of the relay fails). This can happen when copying/pasting the FQDN.
I noticed something similar with leading/trailing whitespaces in the "URL" pane when you select "Open Network". I wonder if it's a generic VLC issue with all their data input panes?
If the FQDN for the AMT relay address in the preferences pane has leading or trailing white space, VLC will be unable to open the multicast stream (presumably because name resolutions of the relay fails). This can happen when copying/pasting the FQDN.
Would there be a way to trim whitespace?