Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.
Register now!Calling all Data Engineers! Fabric Data Engineer (Exam DP-700) live sessions are back! Starting October 16th. Sign up.
All my Power BI models are failing to connect to my MS SQL Server after a recent Power BI update. I am getting the following error message with Windows authentication:
If I try and use the Microsoft Account authentication, i get the following error message:
However, i can manage to connect to the Server via SQL Management Studio. Please assist.
Best regards.
Chris
Solved! Go to Solution.
Hello, managed to troubleshoot the problem. It was actually a conflict with a newly installed SQL Server 2017 Developer Edition on top of SQL Server 2014. When i uninstalled SQL Server 2017 Developer Edition, everything was now working.
Regards,
Chris
@Chitemerere was it working before? Do you use mixed authentication on sql server? Can you try database credentials?
I would ❤ Kudos if my solution helped. 👉 If you can spend time posting the question, you can also make efforts to give Kudos whoever helped to solve your problem. It is a token of appreciation!
Subscribe to the @PowerBIHowTo YT channel for an upcoming video on List and Record functions in Power Query!!
Learn Power BI and Fabric - subscribe to our YT channel - Click here: @PowerBIHowTo
If my solution proved useful, I'd be delighted to receive Kudos. When you put effort into asking a question, it's equally thoughtful to acknowledge and give Kudos to the individual who helped you solve the problem. It's a small gesture that shows appreciation and encouragement! ❤
Did I answer your question? Mark my post as a solution. Proud to be a Super User! Appreciate your Kudos 🙂
Feel free to email me with any of your BI needs.
Hello, managed to troubleshoot the problem. It was actually a conflict with a newly installed SQL Server 2017 Developer Edition on top of SQL Server 2014. When i uninstalled SQL Server 2017 Developer Edition, everything was now working.
Regards,
Chris
Many thanks for your prompt resonse, most appreciated. Yes i was able to connect to the Server before the update. Yes i have mixed mode authentication. If i try using the database option i get the following error message:
Best regards,
Chris
@Chitemerere can you try to use 127.0.0.1 instead of localhost.
I would ❤ Kudos if my solution helped. 👉 If you can spend time posting the question, you can also make efforts to give Kudos whoever helped to solve your problem. It is a token of appreciation!
Subscribe to the @PowerBIHowTo YT channel for an upcoming video on List and Record functions in Power Query!!
Learn Power BI and Fabric - subscribe to our YT channel - Click here: @PowerBIHowTo
If my solution proved useful, I'd be delighted to receive Kudos. When you put effort into asking a question, it's equally thoughtful to acknowledge and give Kudos to the individual who helped you solve the problem. It's a small gesture that shows appreciation and encouragement! ❤
Did I answer your question? Mark my post as a solution. Proud to be a Super User! Appreciate your Kudos 🙂
Feel free to email me with any of your BI needs.
Thank you very much for your input, most appreciated.
Regards,
Chris