QuickBooks Error H101 If the computer containing your QuickBooks company file isn’t correctly configured, QuickBooks error H101  can pop up. There can be many reasons for this issue, including Windows firewall obstruction. The error code can occur while opening or accessing the company file and can also cause data loss. If you are getting the QuickBooks error code H101, follow this article till the end. We will provide you with the possible reasons and solutions to rectify th