Microsoft 365 Alert – Service Degradation – Power BI – Users may experience failures when attempting to connect to Microsoft Fabric – NEW

Announcements Arpan Das

11/06/2026 1:43:00 PM

NHSmail Reference: INC46849158

Microsoft Reference: PB1387136

Issue Status: OPEN

Issue Description: Some users may experience failures when attempting to connect to Microsoft Fabric

More info: Users connecting to Microsoft Fabric (Data Warehouse) without specifying a database may land on the master database by default. When users run three-part queries (e.g., dbname.dbo.table) from the master database, the query fails with an error message. As a result, users are unable to successfully execute those queries unless they specify or switch to the correct database first.

As a workaround, users can specify the database name in connection properties or add a new line “USE ” while querying from database.

Current Update: 11/06/2026 1:43:00 PM – Microsoft has identified that a recent service change in Microsoft Fabric connectivity layer altered the default database selection behaviour, causing queries to fail for some users. They are working to revert this change to mitigate impact, and they are conducting a period of monitoring service telemetry to verify its success in mitigating impact.

Scope of impact: Impact is specific to some users in the United States and the United Kingdom who are attempting to connect to Microsoft Fabric.

Root cause: A recent service change in Microsoft Fabric connectivity layer altered the default database selection behaviour, causing queries to fail for some users and resulting in impact.

Next update by: Friday, June 12, 2026, at 11:30 AM UTC