When users report that they are unable to connect to the geodatabase after nightly maintenance, and the GIS administrator can connect successfully, the issue is likely due to the geodatabase being set todeny new connectionsduring or after the maintenance process.

1. Geodatabase Maintenance and Connections

During maintenance, administrators often set the geodatabase to deny connections to prevent user interference.

If this setting is not reverted after maintenance, users will be unable to connect, but the administrator may still connect using their direct privileges.

2. Steps to Check if the Geodatabase is Accepting Connections

OpenArcGIS ProorArcGIS Enterprise Manager.

Go to the geodatabase properties.

Check the"Connections"setting:

Ensure the option"Accept Connections"is enabled.

3. Why Not Other Options?

Number of Maximum Connections:

While a connection limit could block users, the administrator would also face this issue if the limit was reached.

Correct Username and Password:

This is unlikely the issue if multiple users suddenly report the same problem after maintenance.

References from Esri Documentation and Learning Resources:

Managing Geodatabase Connections

Maintenance Best Practices for Enterprise Geodatabases

Conclusion:

The GIS administrator should check if thegeodatabase is accepting connectionsto resolve the issue.