The error code 15222 of the accounting software QuickBooks is related to the update of the software. usually arises when there is a problem with your Internet Connection settings. QuickBooks is an accounting/bookkeeping application package developed by Intuit for the management of small-medium scale size businesses. Therefore, QB takes too long to connect with the web servers and the updates don’t get installed. To resolve QB error 15222, make sure that your internet is running properly. You can also try various other methods given in this blog to fix this issue.