started getting this error yesterday. Posted solution does not address the problem https://www.quicken.com/support/error-message-when-updating-accounts-cc-800
Hello @GTmem,
As per the FAQ: If the steps above do not resolve the issue, please reach out to Quicken Support. This is because an escalation may be in order.
Phone support is available from 5:00 am PT to 5:00 pm PT, Monday through Friday.
Thanks!