AppSync: While upgrading AppSync to version 4.2.0.0 or 4.3.0.0 a pop-up error is received stating: Unable to stop "EMC AppSync server Service"

While upgrading AppSync from version 4.1.0.0 or 4.1.0.1 to 4.2.0.0/4.3.0.0 or upgrading from version 4.2.0.0 or 4.2.0.1 to 4.3.0.0 the below pop-up error is received:
 
The pop-up states:
 
Error specification:
The AppSync server service is taking a longer time to respond(stop), due to which above pop-up occur.

Support Assist being added to AppSync can trigger this issue.

Support Assist is formally known as the ESRS (EMC Secure Remote Support) Gateway.

Workaround:

Regardless of versions, removing Support Assist from the AppSync GUI in " Settings -> Dell EMC SupportAssist " and then exiting and re-entering the AppSync GUI to verify it is removed, will workaround this issue.

The Dell EMC SupportAssist can be re-added following a successful upgrade if desired.


Resolution:

If upgrading from AppSync 4.2.0.0 or 4.2.0.1, a hotfix exists for AppSync 4.2.0.0 and 4.2.0.1.
Refer to this article when calling in a service request.


If upgrading from AppSync 4.1.0.0 or 4.1.0.1, refer to this article when calling in a service request.