Cannot download books from library sites - E_AUTH_BAD_DEVICE_KEY_OR_PKCS12

[dellar23763711]

I have been using Digital Editions to read eBooks from various university and public library sites for several years. Recently, I have not been able to open downloaded materials. I get this message: E_AUTH_BAD_DEVICE_KEY_OR_PKCS12

It appears from the forum that this has been an ongoing problem but the May 2017 queries remain unanswered.

What is the issue? How do I fix it?

As ADE is the only platform compatible with iMac for my university library, the issue is quite urgent.

[cselhost]

Hi Dellar,

Please follow the instructions here for your operating system to reset the activation files and get signed back in:

Removing the Adobe Digital Edition authorization when it fails (erase authorization) – Feedback and ...

This should fix the issue, but please comment if it doesn't.