The sync now button appears not to do anything at all. I try to sign into my app on the phone and it says that my accounts are not set up to sync on the phone but they are according to my Quicken desktop.
Sorry to hear about the issue you are having. First, please uninstall the Mobile app from your device. Then, in Quicken, go to Edit > Preferences > Intuit ID, Mobile & Alerts. Click on Un-link this cloud data. Restart the Quicken Program. Now go back to Edit > Preferences > Intuit ID, Mobile & Alerts. Click on Get started and follow onscreen prompts and yes to replace the cloud data. Install the mobile app again and try connecting again
If the issue persists after trying the above steps, please reach out to our support team here: https://www.quicken.com/support#windows or call Quicken Support: 650 250 1900 (Monday - Friday 5AM-5PM PST)