I had to restore my site from a database backup and directory copy, which went fine and all content seems to be restored fine.  The problem is that none of the existing users can login now, including the superuser or admin accounts. They are all still there and I can view their profiles but noone can login.  To try something I registered a new user and that user is fine and can login.  None of the existing users can even request forgotten passwords either.  When trying to login they get "Login Failed, remember that Passwords are case sensitive", and I know the password for a few of the accounts is correct. 

Thinking it must be a aspnet membership problem I checked the applicationID on the existing user versus the new user and the applicationId for each and they are the same.  I am really stuck here and hoping someone can help me.

Any ideas, thanx in advance

Raa

Hello Sebastian,

I moved my site from an old server to a new one and I am having the exact same problem as Raa.

I have the old and the new "web.config" files.

Which line or lines of text do I need to copy from the old web.config file to the new one to make sure that the machine key is remains the same.  

Thank you,

Mr Seem

It depends on which version of DNN your site is running. But it's probably the machine key indeed.