Server instance - DynamicsNAV 2015

Hello all

could somebody tell me what dose it mean

Server instance: xxxxxx
Tenant ID: default
Session type: RoleTailoredClient
Session ID: 168
The connection to SQL server was lost
Database server: SQLxxxx
Database name: Navisionxxx.

It’s only happend time to time. The user lost the connection and after short time the connection will be restored again.

Best regards

You can check the event viewer for more details.
Before disconnection is the user NAV Session is idle? If yes then check the service tier idle timeout period.