Outlook calendar

Have an issue. I have a user who uses her desktop workstation Outlook (Calendar) while at work and when she goes home she uses remote desktop Outlook (calendar). The remote desktop Outlook aclendar is missing appointments and has old “deleted” appointments that shouldn’t be there anymore. It’s the same exchange mail store account but these two Outlooks aren’t synchronized. The one at her workstation at work is current and correct. The Calendar on remote desktop is outdated and missing crucial appointments. The workstation at work is in “cache” mode so I don’t know if that makes a difference or not. Any ideas? I’ve done a repair on the remote desktop outlook to no avail.