Invalid Credentials

I have been using Quicken for over 10 years without having problems until I upgraded to Quicken Starter version R45.18 Canada for Windows 11. My desktop version works fine, but I am unable to login to the online version without getting "Invalid Credentials" error. When I go through the process of entering validation 6-digit code and new password, I get the same error, over and over again.
I do run VPN, but I ensure I am using Canadian servers when using Quicken online.
I have seen some Community discussion regarding scanning a QR code with your mobile device, but I believe the latest version doesn't have this option as I can't find the path stated to follow.
As I travel a fair bit, I like to keep track of my banking affairs online. I am on the verge of looking at competitive software.
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