try on another browser like opera o edge.

if not continues giving go on incongniyo mode.

Nothing works. The site is blocked by corporate firewalls just because of invalid certificates of mirostatic.com. Miro has to fix that.

Hi ​@Steffen König, thanks for reporting this!

I will go ahead and convert your case into a support ticket so our technical team can investigate further and assist you directly—especially given that this may involve certificate validation on corporate networks.

You’ll receive a follow-up via email shortly. We appreciate your patience, and we’ll do our best to help you get access to your boards again as soon as possible.