From the FAQ:
Q: I just enabled 2FA on my profile, why can I still not create/edit/bump/close a listing?
A: There are a number of checks and verifications that our system runs when someone enables 2FA on their profile, and it's possible to help the process along by logging out after enabling 2FA and then log in again. Please note that after enabling 2FA it may take up to an hour before you can add or modify listings. The requirement for 2FA is in addition to our 30 day and 15 post requirements, so all three requirements must be met before a Head-Fi'er can post in Head-Fi Classifieds.
Please note that after enabling 2FA it may take up to an hour before you can add or modify listings.
Q: I just enabled 2FA on my profile, why can I still not create/edit/bump/close a listing?
A: There are a number of checks and verifications that our system runs when someone enables 2FA on their profile, and it's possible to help the process along by logging out after enabling 2FA and then log in again. Please note that after enabling 2FA it may take up to an hour before you can add or modify listings. The requirement for 2FA is in addition to our 30 day and 15 post requirements, so all three requirements must be met before a Head-Fi'er can post in Head-Fi Classifieds.
Please note that after enabling 2FA it may take up to an hour before you can add or modify listings.