Error: "QuickBooks Lost Connection to company file" when opening a shared file in QuickBooks Mac 2019
Incident Report for QuickBooks
Resolved
QuickBooks for Mac 2019 R12 has been released to resolve this issue.

To install this update:
1. Open QuickBooks (If you have auto update enabled you should be prompted and can just skip to step 3)
2. Go to QuickBooks > Check for QuickBooks Updates
3. Follow the on screen instructions

We apologize for any inconvenience this has caused, and appreciate your patience while we worked on resolving this issue.
Posted Oct 04, 2021 - 07:37 PDT
Identified
We’ve identified the source of the problem and are working to resolve the issue.
Posted Oct 01, 2021 - 09:12 PDT
Investigating
Some customers are encountering the error "QuickBooks Lost Connection to company file" when opening a shared file in QuickBooks Mac 2019. We’re aware of this issue and are working to fix it. We’ll share updates as soon as we learn more. We apologize for the inconvenience and hope to get everything up and running soon!
Posted Oct 01, 2021 - 07:59 PDT
This incident affected: QuickBooks Desktop (United States).