Solution: 1. Check whether tcp/ip is enabled and pay attention to the port number; 2. Check the network problem; 3. Use the telnet command to check the port situation; 4. Check the server item and whether the username and password are correct. ; 5. Check whether the server allows remote connections; 6. Start two authentication modes.
The operating environment of this tutorial: windows7 system, sql server 2008 version, Dell G3 computer.
When you cannot connect to the database, check the following items:
1. Network conditions. Check if tcp/ip is enabled and note the port number.
Open the SQL SERVER Configuration Manager and check the network configuration
## The above solves the problem of being unable to connect to the database .
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