In Quickbooks, the user is prompted with Quickbooks error code 179 when attempting to log into the Bank site. According to this post, this error is entirely related to the Bank site. In addition, this error can cause the user to experience website crashes as well as bank transactions that are denied. A user can't download any data due to the error, and the entire website becomes locked. However, it suggested that the user first examine the reasons for the error before finding a solution.