How and when to use Quickbooks connection diagnostic tool

1
When To Use QuickBooks Connection Diagnostic Tool

• You can try using QB Connection Diagnostic Tool
  to fix any of the following errors or issues in
  your software.
• When the QuickBooks Database Server Manager or QB
  Database is not working normally.
• The Windows Firewall is not configured correctly
  for the QuickBooks version installed on the
  computer.
• It can also be used to fix damaged or corrupted
  QuickBooks company files, due to which users may
  not be able to access company files.
• The QuickBooks diagnostic tool can be used to
  troubleshoot the error if the vendor and customer
  lists are empty.
• The QuickBooks Tool can also be used when users
  have made changes to entries but the changes
  cannot be updated.
• You can fix all H-series errors in Multi-user
  mode by using the QB Connection Tool.
• QuickBooks Diagnostic Tool can resolve all 6000
  series errors.

2
What Problems QuickBooks Connection Diagnostic
Tool Can Fix

• If you are experiencing such an issue, you can
  use the QuickBooks Connection Diagnostic tool
• QuickBooks Database cannot be accessed.
• A Windows firewall was installed incorrectly.
• In your software, the vendor list became vacant.
• When your customer lists are also empty.
• The 'Employees lists' do not contain a number of
  entries.
• Existing corrupted or infected files in the
  system
• The QuickBooks files are infected with a virus or
  are missing.