QuickBooks Error 12002 is a regular problem that QuickBooks customers have, and it is usually related to network connectivity issues. This error code indicates that QuickBooks is unable to establish a secure connection to the server, preventing tasks such as software upgrades and online transactions from being completed. Troubleshooting network settings and firewall setups frequently aids in the resolution of this issue. Please contact us at +1-855-948-3646 for immediate assistance with your problem.