QB Issue Resolution:

AirDrop.Launch Air Drop on both computers, confirm they see each other. Drag and drop the file on the receiving computer icon, accept the drop on the second computer.

Resolution for Issue 'How do I transfer my company file from my laptop to my desktop wirelessly?' available: Yes (Solved).
Source: Intuit Community forum.

How do I transfer my company file from my laptop to my desktop wirelessly?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for Company File
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Error Recovery for Company File [Canada]
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