When connecting as set up through BAM, I get the following notice from CDPN:

"climateprediction.net: Notice from BOINC
This project is using an old URL. When convenient, remove the project, then add https://climateprediction.net/
7/10/2018 8:26:37 AM"

I believe the update is a switch to HTTPS. Thank you for your assistance updating BAM - do users need to reset something once BAM's configuration is updated?

I would HOLD OFF yet on switching over until we are sure they get all the "bugs" fixed and the confusion of a possible NEW URL to attach your BOINC clients to (https://www.cpdn.org/cpdnboinc/).

Best to follow the topic on the MAIN BOINC board CPDN Offline Again (second act) AND on the CPDN project forum topic Nearly there.

EDIT: If you have one (or more) CPDN tasks in-progress your PC'(s) and DETACH YOU WILL LOOS ALL PROGRESS ON THOSE TASKS.

So, the problems seem to be fixed according to the linked CPDN forum topics. Could you update the URL now?