Remote Server access/login problem

Question

My OS is Windows Server 2008 Enterprise. I have installed SqlServer 2008. In network i want to access Other users Server,i have already enable remote access,when i try to login show bellow error

**Connection can not TITLE: Connect to Server
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Cannot connect to TECHNO009.

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ADDITIONAL INFORMATION:

Login failed for user 'TECHNO009\Guest'. (Microsoft SQL Server, Error: 18456)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476

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BUTTONS:

OK
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Several times i try to connect as windows and sqlServer Authentication mode.But i failed,Other users also try to connect with my server they also failed and get the same message.

Why error occur ,How to solve it?

Answer 1

This can be for any number of reasons.

The first thing to do is follow the link from the error message.

These are the user actions recommended on it:

If you are trying to connect using SQL Server Authentication, verify that SQL Server is configured in Mixed Authentication Mode.

If you are trying to connect using SQL Server Authentication, verify that SQL Server login exists and that you have spelled it properly.

If you are trying to connect using Windows Authentication, verify that you are properly logged into the correct domain.

If your error indicates state 1, contact your SQL Server administrator.