We were advised that our cookie settings were wrong and carried out some corrective work, but that has left many users with older (broken) cookies on their browser that still have the log-in problem.
The "Delete all board cookies" link at the bottom of the forum is NOT deleting these broken cookies.
We have a couple of workarounds, but are going to take the forum offline for maintenance:
- You can use instructions for your specific browser to find and delete the specific Piazza cookies and delete them all (this will cause your browser to pull down a new cookie) or
- You can use Private Browsing mode to stop your browser seeing the cookie stored on your computer.
It's going to close on Friday evening. We hope to have it open again by Monday morning.
During Saturday and Sunday, we will be working on the forum and testing it. You might see it come back, while we are testing it, but unless we announce that the work is finished earlier than expected there is a chance that we might restore a backup (and zap any posts made before the backup is restored).
I'll start a separate topic about clearing out individual cookies for The Piazza, in case we still need some people to do that.