Forum Discussion
tchia599
Aug 09, 2025Copper Contributor
Need help with SQL error 26
Hi All, I need help with SQL server error 26, I have a desktop application that runs on Windows Server and the app could be open on some servers and not others, attached image is the error that I get...
AyushBansal
Microsoft
Aug 24, 2025Hi tchia599 ,
To troubleshoot this, we will need more information on how this application is trying to connect to SQL Server. What is the connection string used by the application? Is it pointing to the correct SQL Server instance?
You can follow this troubleshooting workflow to isolate the issue: 0200 Consistent Network Issue · microsoft/CSS_SQL_Networking_Tools Wiki · GitHub