The QuickBooks Network Diagnostic Tool is a QuickBooks apparatus that alleviates errors in the company while operating on multi-user mode. This diagnostic tool also resolves problems with network connectivity. Steps to use QuickBooks Network Diagnostic Tool The following are the steps that you must follow to overcome connectivity issues: •First, click on the icon next to your company’s name to find your company’s file. •Then, you will see two criteria (1) Green ‘no problem detected’, (2) Red ‘problem detected’. •Select the ‘test connectivity’ button. •Some red indicated messages will pop up. They’ll show you all the areas fixed. Click on the ‘what do these mean’ option. •Once you’re done with the recent status, run the tool again to check if any pending issues persist. •Click on the ‘Finish’ option to end the procedure.