Stumbled upon QuickBooks error code 12157 and don’t know what to do? As per the recent reports, many users have reported this error due to various reasons, such as improper installation, data connectivity issues, upgrade errors, update errors, and what not. This error code falls under the 12000 error series that occurs due to the web connectivity problems with Microsoft Win32 Internet. It should be noted that this API is used by the QuickBooks in order to swiftly access the Internet Protocols such as the FTP, HTTP, and Gopher. Many QB users find it difficult to deal with this type of error. Keeping this in mind, we have come up with this article, where we will be discussing the causes and fix QuickBooks error code 12157.