The symptoms of "QuickBooks Cannot Communicate with the Company File" error can vary depending on the cause of the error. Here are some common symptoms to look out for:
QuickBooks is unable to open the company file.
The user receives error messages such as "Error -6000, -82", "Error -6189, -816", "Error -6190, -83", or "Error -6000, -832".
The user is unable to switch to multi-user mode or access the company file over a network.
QuickBooks is slow to respond or freezes when trying to open the company file.
The user is unable to access certain features or data in the company file.
QuickBooks crashes or shuts down unexpectedly when trying to open the company file.
The user is unable to save changes to the company file or experiences data