Our entire site was deleted by accident, so a restore was done from a back up copy. Ever since the restore was done, users get prompted for their AD login credentials meaning that they don't currently have access to the site. When the credentials are input, they get denied. I am set up as a site collection admin and a server farm admin and I am unable to access any of the sites as well.
Can anyone please tell me how we can reinstate the credentials as they were? I tried the stsadm -o migrateuser command but that didn't work.