This is excellent info
I am also investing a great del of time in discovering why the connectors or something is not working.
Esri has verified the connectors do work on a commercial environment
Unfortunately, according to esri, 80% of their customers are government.
I believe people like you and I have found other solutions besides the ArcGIS Connectors.
As they've been mostly unreliable, undocumented, and time consuming to keep it working.
Esri tech support can't assist.
Because they don't have access to a government environment.
Even though 80% of the customers calling are government.
I think @AkshayHarshe is our only hope.
As it seems noone else from the team monitors these channels or haven't had an opportunity to provide input.
I feel lost and in the cold
Aaron