This operation requires a connection to the 'master' database

Question

I have suddenly started getting an error in my application.

The error is:

This operation requires a connection to the \'master\' database. Una

Answer 1

I had this issue and in my case resolved it by adding "Integrated Security=True" to the connection string. This only applies if you're connecting to the DB using Windows Authentication. Hope it helps.

Answer 2

This error happened to me and none of the above worked. Embarrassingly, I realised that I had missed out a semi-colon from the connection string. Might be useful...

Answer 3

If you are working on windows authentication :

• You can add "Integrated Security=True" to your connectionString.

For user authentication:

• You must add sql server authentication informations ("uid=YourUserName; Password=yourpassword;") to your connectionString.