I have a Multi Tenant SharePoint 2013 environment configured for FBA in Windows Azure, with SharePoint 2013 and SQL Server 2014 on separate VMs. For every tenant, the SQL connection string dynamically gets the User DB name in the Custom Membership Provider.
Everything was working fine and I was able to login with the Forms user. Due to some other issues, I had to delete and recreate the User Profile Service Application. After this, I found that my FBA login is no longer working. It is not authenticating the user.
I have no clue, what permissions got changed because of the recreation of the User Profile Service, because of which I am facing this issue. Unfortunately, I have no Visual Studio in that environment and hence I can't even debug the custom membership provider
to see, what is going wrong with its ValidateUser method. Can anyone please help?
Ven