Log for login errors?

I’ve got an installation of Omeka on my hosted server that I am starting to use for student projects, which means I have lots of accounts for the students. Most of the time this is okay, but every now and then I have one or two students who really struggle with technology and repeatedly have trouble setting up their accounts and logging into them. Is there an option or plugin to keep a log of login errors? It would make it a lot easier for me to help the students. I think I saw a plugin for Omeka S that creates logs, but nothing for Classic.