QuickBooks Error 90002 occurs when there’s a problem with the connection between QuickBooks and the servers used to transmit financial data, often during payroll updates or while downloading transactions. This error is typically caused by issues such as network timeout, incorrect internet settings, or outdated QuickBooks software. Viable Solutions Check Internet Connection: Ensure your internet connection is stable. Restart your router and reconnect to the internet. Update QuickBooks: Make sure your QuickBooks software is up to date. An outdated version can lead to compatibility issues, triggering Error 90002. Configure Internet Settings: Verify that your internet settings are correctly configured. Adjust the firewall and security software to allow QuickBooks to access the necessary servers. Revalidate Payroll Service Key: Re-enter your payroll service key in QuickBooks if the error occurs during payroll updates. This helps re-establish a connection with Intuit’s servers. Check SSL Settings: Ensure that SSL settings in Internet Explorer are correctly configured, as QuickBooks relies on these settings for secure communication. By following these steps, you can resolve QuickBooks Error 90002 and restore seamless operation of your accounting processes.