QuickBooks Error 12057, which is usually brought on by network problems, an erroneous system date and time, interference from antivirus or firewall software, or obsolete software, can interfere with software updates and online service connections. To start, make sure your system\'s date and time are set correctly and check the reliability of your internet connection. Update QuickBooks to the most recent version and temporarily disable any firewall or antivirus software that might be preventing it from working. Restoring functionality may also include fixing the QuickBooks installation or deleting the proxy server settings. By following these easy steps, QuickBooks will function smoothly and won\'t get Error 12057.