(SOLVED) Cannot login to dav.runbox.com

I’m trying to setup calendar sync with Thunderbird following these instructions. However, my credentials are not being accepted at dav.runbox.com. I’m entering the same credentials I would use to log into the Runbox webmail. What am I doing wrong?

Note that I have webdav enabled in Settings>Security>Mange Services.

Or is there any easier way to get my calendar to sync?

Thank you.

Okay, I figured it out. I needed to set up an app password to log in.

Thank you!