MMS-Automation fails to connect 100% of the time. And our developers can’t connect, while I can using the same connection string and program (MongoDB Compass) .
Every time it failed it was because of “BadValue: SCRAM-SHA-256 authentication is disabled”.
I believe the MMS-Automation connection failure you have mentioned may not necessarily be a connection failure. As described in the link post for this topic:
The source of this message is that
mms-automation user initially attempts authentication using
SCRAM-SHA-256 which Atlas doesn’t support, causing the “BadValue: SCRAM-SHA-256 authentication is disabled” message, before falling back to SCRAM-SHA-1.
Would you be able to provide a screenshot of that particular error message from Compass?
Additionally, could you describe the steps you’re using to connect via Compass?
I have tried connecting through the internet using the same Compass version to my own test cluster and was not able to reproduce what you are seeing (No BadValue: SCRAM-SHA-256 message + no connection failure).