Unable to add Brother printer / Registration timed out

Edit: Jimmy_Wu It is probably clearer if I explain what seems to be the issue by way of screen shot. I have attached the relevant screenshots. One attachment is the registration workflow on the brother side of things. As you can see, the permission grant on the microsoft side doesn't show up in the workflow. So it looks like it is able to register the application in the users tenant, and then gets stuck when it should then advance to the granting of admin permissions.

The other is the workflow to manually grant admin permission to the tenant for the brothe app. 

As I mentioned in the original post, cipher suites and TLS updates don't seem to be the issue. It would seem that someone at brother simply needs to add the url to the application registration as a reply URL. Since this is a multi tenant app, only the App owner (brother) can do this. If I am correct this is literally a 15 second fix that requires no further investigation or input from microsoft.

I opened a support chat for this earlier this week because I got this error on the brother side as well when trying to register a new printer, but when I tried to manually accept permissions for my tenant on the AAD side, I got this error:

AADSTS50011: The redirect URI
'https://entra.microsoft.com/TokenAuthorize' specified in the request does not match the redirect URls configured for the application '40af16e9-e149-4a7d-88d3-6a8e300ef866'. Make sure the redirect URI sent in the request matches one added to your application in the Azure portal. Navigate to
https://aka.ms/redirectUriMismatchError to learn more about how to fix this.

Seems to me the fix is as simple as adding the entra token auth url to the brother app. Only brother can do this.