The database connection problem is not found or the server cannot be accessed

Today, the code for logging on to a small instance on the third layer has been completed, but a problem occurs during the operation: this problem is still the first time encountered, and it feels very novel, I checked the information online, and now I want to share with you the information I found: 1. click Start, find the SQLServer Configuration Manager shown in, and click single-open SQLS

Today, the code for logging on to a small instance on the third layer has been completed, but a problem occurs during the operation: this problem is still the first time encountered, and it feels very novel, I checked the information online, and now I want to share with you the information I found: 1. click Start, find the SQL Server Configuration Manager as shown in, and click single-open SQL S

Today, the code for logging on to a small instance on Layer 3 has been completed, but a problem occurs during running:

This was the first time I encountered this problem. I found it very novel. I checked the information online and shared the information I found with you:

1. Click Start, find the SQL Server Configuration Manager shown in, and click single-open SQL Server Configuration Manager.

2. Click to open the content marked as "medium 1". The content marked as "2" appears. Right-click the content marked as "2 ".

3. modify the content in the Box 1, 2, 3, and 4: (modify the content: 1 to write the IP address of your computer; 2 to write 1433, and 3 to select "yes ", enter 1433 in Part 4

Click OK to save the changes.

4. After completing the preceding three steps, click "1", right-click "2", and then click "3" to ensure that the database instance runs again.