Every time I try to turn on One Step Update for my American Express account, the authorization immediately fails with:
"Sign into American Express bank failed. Try again.
Sorry, the sign in failed due to time out or a connection error.
Select Sign In to authenticate via your web browser"
And clicking Sign In goes back immediately to the error page.
I've rebooted my machine, turned off any ad blockers, with no change in behavior.
How can I fix this?