There was an issue yesterday where it was not possible to connect to the download server.
That has been fixed now, but I did not actually try to download anything.
Try again, maybe try a different browser as well.
Are you experiencing slowdowns on other websites, or just when trying to download Archicad?
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10