Power BI Report Server Database Error – Connection Failure, Timeout, or Low Disk Space

[powerbiexpert96]

Hi Community,

I'm getting the following error in Power BI Report Server:

An error occurred in the report server database. This may be due to a connection failure, timeout, or low disk condition within the database.

Has anyone encountered this issue before? What logs or checks would you recommend reviewing to identify the root cause?

Any suggestions would be appreciated. Thanks!

[trivedisunita · Accepted solution]

Hi @powerbiexpert96 ,

This error usually indicates a problem with the ReportServer database connection or the underlying SQL Server environment. A few checks that can help identify the root cause-

• Database connectivity- Confirm the ReportServer DB is online and accessible via SQL Server Management Studio. Make sure the PBIRS service account has the required RSExecRole permissions.

• Disk space- Verify free space on the SQL Server drives hosting the ReportServer DB. Low disk conditions can trigger this error.

• Timeouts / performance- Check SQL Server logs for query timeouts or resource bottlenecks.

• PBIRS logs- Review C:\Program Files\Microsoft Power BI Report Server\PBIRS\LogFiles\RSPowerBI_*.log for detailed error traces.

• Event Viewer -Look for related system or application errors.

• Service account & configuration - Ensure the PBIRS execution account has correct privileges and that SSL bindings (if used) are valid.

If you recently updated certificates or changed SQL Server settings, double‑check those configurations.

If this reply helps you troubleshoot the issue, please mark it as a solution.

Thanks

Sunita

[Nasif_Azam · Accepted solution]

Hey @powerbiexpert96 ,

This is a common issue with Power BI Report Server, and the good news is it is usually fixable. Here are the steps I would recommend to diagnose and resolve it:

1. Check Database Connectivity

• Verify the SQL Server instance hosting the ReportServer database is running
• Ensure the Report Server service account has proper permissions to access the database
• Test the connection string in the Reporting Services Configuration Manager

2. Review Critical Logs

Check these log files (typically in C:\Program Files\Microsoft Power BI Report Server\PBIRS\LogFiles):

• ReportServerService_*.log - Main service logs
• ReportServerSharePoint_*.log - Configuration logs
• ReportServerWebApp_*.log - Web application logs

3. Diagnose the Three Possible Causes

Connection Failure:

• Test SQL Server connectivity using SQL Server Management Studio
• Verify firewall rules allow communication between Report Server and SQL Server
• Check the service account credentials in Reporting Services Configuration Manager

Timeout:

• Increase the database query timeout in Configuration Manager (default is 30 seconds)
• Check SQL Server for long-running processes or locks
• Review network latency between servers

Low Disk Space:

• Run Disk Management and check available space on the SQL Server drive
• Monitor the ReportServer and ReportServerTempDB database files
• Consider archiving or purging old execution logs

4. Restart Services

• Restart the SQL Server service
• Restart the Power BI Report Server service
• Clear the browser cache and retry

Quick Command to Check DB Status:

-- Run in SQL Server Management Studio
SELECT name, state_desc, database_id FROM sys.databases 
WHERE name LIKE 'ReportServer%'

For Detailed Information:

Hardware and software requirements for installing Power BI Report Server 

Create a Native Mode Report Server Database (Report Server Configuration Manager) 

Reporting Services log files and sources

[trivedisunita · Accepted solution]

Hi @powerbiexpert96 ,

This error usually indicates a problem with the ReportServer database connection or the underlying SQL Server environment. A few checks that can help identify the root cause-

• Database connectivity- Confirm the ReportServer DB is online and accessible via SQL Server Management Studio. Make sure the PBIRS service account has the required RSExecRole permissions.

• Disk space- Verify free space on the SQL Server drives hosting the ReportServer DB. Low disk conditions can trigger this error.

• Timeouts / performance- Check SQL Server logs for query timeouts or resource bottlenecks.

• PBIRS logs- Review C:\Program Files\Microsoft Power BI Report Server\PBIRS\LogFiles\RSPowerBI_*.log for detailed error traces.

• Event Viewer -Look for related system or application errors.

• Service account & configuration - Ensure the PBIRS execution account has correct privileges and that SSL bindings (if used) are valid.

If you recently updated certificates or changed SQL Server settings, double‑check those configurations.

If this reply helps you troubleshoot the issue, please mark it as a solution.

Thanks

Sunita