Server 2012 Linked Server From An Instance

I have 3 SQL Server 2012 Instances, 2 on SiteA on the same server SiteAServer. I have 1 on SiteB on server SiteBServer.

SiteADefaultInstance, SiteASecondInstance

SiteBDefaultInstance

• SiteBDefaultInstance can create a linked server to SiteADefaultInstance and SiteASecondInstance.


• SiteADefaultInstance can create a linked server to SiteBDefaultInstance.


• SiteASecondInstance CANNOT create a linked server to SiteBDefaultInstance.

I get the error

"Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON"

I am setting the security to be made using the current context.

I have ran setSPN for SiteAServer and SiteBServer. You don't have to change the commands if you have more than one instance do you? I am in the role sysadmin.

I have never experienced where it only worked one way before. Any suggestions where to look?