I just set up my new Nano and can access it without an issue.
However when I try to add a antlet I only have the Raspian template and no additional available for download. The list is just blank.
In addition any I attempt to import returns a quick message "Fix Validation Errors" but no errors are given.
I have also verified it has internet connection by successfully pinging;
ping -c 3 anthill.antsle.com
ping -c 3 google.com