Have you tried again today? Disney+ was having lots of service issues yesterday due to being overwhelmed by amount of users signing up so it might have just been a temporary problem. I have eero with Secure+ and don’t have any issues with Disney+.
Sieglock Thanks Mark. My ISP confirmed that they were having issues with Disney+ not whitelisting their IP so they had to work with Disney+ to get it resolved. All is good now - I can connect with eero+ and my small/local ISP.