Login failed when querying linked server


I am trying to create a linked server in SQL Server:

--Create the link to server "uranium" EXEC master.dbo.sp_addlinkedserver @server = N'uranium', @srvproduct=N'', @provider=N'SQLNCLI' --Add the catch-all login with SQL Server authentication EXEC master.dbo.sp_addlinkedsrvlogin @rmtsrvname=N'uranium', @useself=N'False', @locallogin=NULL, @rmtuser=N'BatteryStaple', @rmtpassword='Horsecorrect'

And it creates fine. But any attempt to query the linked server, e.g.:

SELECT * FROM uranium.Periodic.dbo.Users

results in

Msg 18456, Level 14, State 1, Line 1 Login failed for user 'BatteryStaple'.

Except i know the credentials are correct:

<ul><li><strong>Login:</strong> BatteryStaple</li> <li><strong>Password:</strong> Horsecorrect</li> </ul>

because i can login when i connect directly using SQL Server Management Studio, or any other technology that is able to connect to a database.

<a href="https://i.stack.imgur.com/a05aK.png" rel="nofollow"><img alt="enter image description here" class="b-lazy" data-src="https://i.stack.imgur.com/a05aK.png" data-original="https://i.stack.imgur.com/a05aK.png" src="https://etrip.eimg.top/images/2019/05/07/timg.gif" /></a>

<h2>Bonus Reading</h2> <ul><li><a href="https://stackoverflow.com/questions/10569936/login-failed-for-linked-server" rel="nofollow">Login Failed for linked server</a> <em>(he forgot to call sp_addlinkedsrvlogin)</em></li> <li><a href="https://dba.stackexchange.com/questions/43350/why-am-i-getting-a-login-failed-when-creating-this-linked-server" rel="nofollow">Why am I getting a “login failed” when creating this linked server?</a> <em>(he's trying to use integrated authentication)</em></li> <li>MSDN Blogs: <a href="https://blogs.msdn.microsoft.com/sql_protocols/2006/08/10/sql-linked-server-query-failed-with-login-failed-for-user/" rel="nofollow">SQL Linked Server Query failed with “Login failed for user …”</a> <em>(he's trying to make integrated authentication work)</em></li> </ul>

<strong>Note</strong>: New SQL Server 2014 install. Every existing SQL 2000, 2005, 2008, 2008 R2 can communicate to their uranium linked server. I'm certain it is related to Microsoft's frustrating <a href="https://stackoverflow.com/questions/28474432/is-put-broken-by-default-in-asp-net-mvc" rel="nofollow"><em>broken by default</em> policy</a>.


The issue is that the SQL Server Management Studio interface creates the linked server using the OLEDB Provider:

<a href="https://i.stack.imgur.com/DDhcv.png" rel="nofollow"><img alt="enter image description here" class="b-lazy" data-src="https://i.stack.imgur.com/DDhcv.png" data-original="https://i.stack.imgur.com/DDhcv.png" src="https://etrip.eimg.top/images/2019/05/07/timg.gif" /></a>

This is equivalent to the original T-SQL:

--Create the link to server "uranium" EXEC master.dbo.sp_addlinkedserver @server = N'uranium', @srvproduct=N'', @provider=N'SQLNCLI'

The fix is to create the linked server as <strong>SQL Server</strong>:

--Create the link to SQL Server "uranium" EXEC master.dbo.sp_addlinkedserver @server = N'uranium', @srvproduct=N'SQL Server'

Shouldn't matter. Probably a regression in Microsoft SQL Server 2014 12.0.4213.0. Might be fixed in a service pack - if there is one.

But there it is; solved.


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