Wish to resolve the QuickBooks error 12157? Well, if yes, then reading this segment can be quite helpful in tackling the error. This error can be seen due to web connectivity issues in the windows operating system with Microsoft Win32 internet or which is also termed as WinInetAPI. QuickBooks uses API to run internet protocols easily mainly FTP, HTTP, and Gopher. QuickBooks error 12157 can also be seen when either downloading or setting up updates with the software.