Error: The client and server cannot communicate, because they do not possess a common algorithm.

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Error:MySql.Data.Common.Ssl.StartSSL(Stream& baseStream, Encoding encoding, String connectionString)

at MySql.Data.MySqlClient.NativeDriver.Open() at MySql.Data.MySqlClient.Driver.Open() at MySql.Data.MySqlClient.Driver.Create(MySqlConnectionStringBuilder settings) at MySql.Data.MySqlClient.MySqlPool.CreateNewPooledConnection() at MySql.Data.MySqlClient.MySqlPool.GetPooledConnection() at MySql.Data.MySqlClient.MySqlPool.TryToGetDriver() at MySql.Data.MySqlClient.MySqlPool.GetConnection() at MySql.Data.MySqlClient.MySqlConnection.Open()

This issue is related to a connection issue between a .NET application and a MySQL database. The stack trace shows the application encountering an exception while attempting to open a connection to the MySQL database.

It seems like the error is due to a problem with establishing a Secure Sockets Layer (SSL) connection. The exception is thrown in the MySql.Data.Common.Ssl.StartSSL method, which suggests that the error occurred during the SSL handshake between the client and the server.

To resolve this issue, you could try one or more of the following steps:

  1. Check the SSL configuration on the MySQL server to ensure that it is set up correctly and is compatible with the SSL settings used by the .NET application.

  2. Verify that the SSL certificate used by the MySQL server is valid and has not expired or been revoked.

  3. Check the connection string used by the .NET application to ensure that it is configured correctly to use SSL, and that it is pointing to the correct MySQL server and port.

  4. Try disabling SSL in the connection string used by the .NET application, if possible, to see if the connection can be established without SSL.

  5. Check the network connection between the .NET application and the MySQL server to ensure that there are no firewall or routing issues preventing SSL traffic from reaching the server.


Here I used option 4 to fix this issue

To disable SSL in the connection string used by a .NET application, you can add the SslMode property to the MySQL connection string and set its value to none.

Here is an example of a MySQL connection string that disables SSL:

Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;SslMode=none;



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