you for reaching out on the community and telling us about your issue. I do apologize for the issue you're having. I was taking a look to see if I could find anything and it looks like we don't have any errors active with either FI but we can take a bit deeper of a look here. You mention changing options in internet explorer but the 297 article mentions internet properties which may be what you're referring to. If that's not the case I'd recommend taking a look at the support article down below.
https://www.quicken.com/support/error-when-using-online-services-ol-297I would also attempt the extra troubleshooting steps under if the issue still persists as well if you haven't already done so. If you have let us know and we'll see what we can try next.
You'll also want to make sure that the accounts are set up for direct connect. If you're unsure how to do so I'll leave a video down below.
you get the chance let us know what you're able to find out. From there we'll
see what we able to find next.