Anyone else having issues using ArcGIS manager 10.3 to add your SDE connections to the datastore? We have been unsuccessful in manager - can add folders without an issue. We have had to use Catalog to add our SDE connections. Not really a bit issues as we have the work around, but has been futile in all 5 installs of AGS.
That is part of the issue - no error - just sits there forever attempting to add. I have let it set for well over 30 minutes. Takes a quick 10 seconds in AC. I haven't tried to run Fiddler to see what it is doing in the background as of yet.