When receiving a CC-502 error, we recommend to first check the Quicken Community for alerts on widespread issues. We also recommend that you do not deactivate and reactivate your account(s) to troubleshoot this specific issue, as it could lead to other issues.
This error message is typically caused by maintenance on your bank's website. You can try updating again in a few hours or the next business day. If the issue still occurs after one business day, the steps below should resolve your issue.