Unable to login to COPR

Hey. I can access my FAS account (as you can see) but each attempt to log into copr at https://copr.fedorainfracloud.org/ or http://copr-fe-dev.cloud.fedoraproject.org/ results in timeouts in the browser. I'm using Firefox 47 on Fedora 24. Is there any issue with the infrastructure or is it possible that there is something wrong on my end? Best regards ZK