QuickBooks multi user mode works until lunch then drops

Scenario

Users can work normally in the morning, but multi-user mode breaks later each day with host communication errors.

Recommended Resolution Path

1. Check server sleep, AV scans, and network changes that occur on a schedule.
2. Review the database service state at the time of failure rather than only after restart.
3. Confirm the company file path remains excluded from security tooling.
4. If timing is predictable, correlate it with another task before changing the application itself.

Technician Notes

Document what changed, what confirmed the fix, and whether the issue points to a broader standards gap worth addressing for the client.