Login failed for user IIS APPPOOL\DefaultAppPool

Again I got a Error.

Login failed for user iis APPPOOL\Default. I fixed this issue by running following sql script in sql server.


IF NOT EXISTS (SELECT name FROM sys.server_principals WHERE name = 'IIS APPPOOL\DefaultAppPool')
BEGIN
CREATE LOGIN [IIS APPPOOL\DefaultAppPool]
FROM WINDOWS WITH DEFAULT_DATABASE=[MISDB],
DEFAULT_LANGUAGE=[us_english]
END
GO
CREATE USER [WebDatabaseUser]
FOR LOGIN [IIS APPPOOL\DefaultAppPool]
GO
EXEC sp_addrolemember 'db_owner', 'WebDatabaseUser'
GO

Set your required database as default database.

 

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