Great Lakes Educational Loans fails to sync to my account. The error I'm receiving is a problem with my credentials, but my credentials work on the site.
I think the problem is a recent change with the site that requires two step verification. In addition to the password I provide Mint, Great Lakes also requests a PIN to sign in on their site. Since there's nowhere to enter this on Mint, I'm assuming Mint is unable to enter a PIN at their site when requested.