I get the following response - the very same response, I've been getting for 1-1/2 years running now - whenever I try to connect to BMO using Express Web Connect:

There was an Alert for this issue, but it was recently closed with the final post indicating "The issue has been marked as resolved" - but it doesn't actually say the issue is resolved, which, evidently, it is not. Link to Alert:
https://community.quicken.com/discussion/comment/20271631#Comment_20271631Please note the error clearly states "It's not your fault".