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The SQL Server instance returned an invalid or unsupported protocol version during login Negotiatio

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This problem is encountered when using. NET core to connect to SQL Server

The literal meaning of the understanding is roughly what version is not supported,

Google a bit, OK, see this 2000 I know what the problem

My database is still 2000, I finally lost 2000,. NET Core support for more than 2005 versions of SQL Server database

Let's change a new version of the database.

The SQL Server instance returned an invalid or unsupported protocol version during login Negotiatio

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