![Fix SQL error: 26 - A network-related error occurred in SQL Server - .Net Core | MVC | HTML Agility Pack | SQL | Technology Crowds Fix SQL error: 26 - A network-related error occurred in SQL Server - .Net Core | MVC | HTML Agility Pack | SQL | Technology Crowds](https://1.bp.blogspot.com/-tZWUTRFZFU0/WKHfeu4_NwI/AAAAAAAACcM/uudDIVS4tUI-wjd5WeZ1nx0PpC-7xx-hACLcB/w1200-h630-p-k-no-nu/SQL-error-26.png)
Fix SQL error: 26 - A network-related error occurred in SQL Server - .Net Core | MVC | HTML Agility Pack | SQL | Technology Crowds
![c# - Error: 26 - Error Locating Server/Instance Specified after hosting to a web server - Stack Overflow c# - Error: 26 - Error Locating Server/Instance Specified after hosting to a web server - Stack Overflow](https://i.stack.imgur.com/TmANy.png)
c# - Error: 26 - Error Locating Server/Instance Specified after hosting to a web server - Stack Overflow
![A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL](https://jbswiki.com/wp-content/uploads/2020/03/blog90_1.jpg)
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL
![provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified - Microsoft Q&A provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified - Microsoft Q&A](https://learn.microsoft.com/answers/storage/attachments/39911-connectionopen-error.png)