How to download QuickBooks connection Diagonostic tools
To begin, go to the official QuickBooks connection diagnostic tool download link and click it
Then save the file to your computer.
After that, run QBInstall tool vs.exe to launch the installer.
Then, turn off any background programmes that are still operating.
The programme was then restarted, and the next step was taken.
Now, to avoid any more problems, make sure you have a strong internet connection.
You must now clear all of the applications that are running in the background.
The final step is to complete the installation procedures.