Quicken CC502 on Citi Cards

The problem

I had a OSU connection to Citibank, which started throwing a cc-502

How I fixed it

1. After trying several things, I luckily landed on a helpful page in Quicken, but I don't remember how I got there. 
2. This advice led to my solution
3. I went into the link https://citi.com/datamanagement
4. It then started its time and told me to now go to my desktop app which is Quicken
5. In Quicken I had to pretend I was adding a new account
6. When choosing the bank, I had to chose Citi Cards instead of Citibank
7. I put in my credentials, and this time, Quicken was happy, and offered to connect to my current Citibank register which I did
8. All good