I can not access
https://numberfields.asu.edu/NumberFields/
from my regular home connection.

Tried various browsers, no dice.
What works is to use a VPN, no problem with access (even tried different countries).

Internet access is through Comcast/Xfinity. And I know they have some sh... proxy setup that has caused me problems with some websites before (Macys.com, Target.com, monoprice.com).

No problem accessing other BOINC related sites.

Is there anything that can be done on your side ?

Either way, maybe this helps other people that have Comcast/Xfinity and problems accessing Numberfields - use a VPN...

I am guessing this might be related to our switching to https at the end of last year. By any chance, did you ever connect to the project before the switch over?

The IT department will not want to relax any of their security requirements, so if this is part of the problem, I'm not sure what I can do from this end. If anyone has any suggestions, I am all ears.