Kia ora folks.
I only see this cert issue when I access the 2degrees website from my 2 degrees UFB connection. I.e. from Skinny 4G the correct certificate is presented. I remember seeing this issue some time ago but thought it must be something funny going on and ignored it. But now I'm curious. Surely it must be me who has something misconfigured rather 2degres struggling with the basics of certificate management? The attachment will explain what I'm going on about...