Using a VPN can potentially cause TurboTax error 606 during activation. This error often occurs when the software can't verify your location or connect to TurboTax servers. VPNs may block or reroute IP addresses, triggering security measures that prevent activation. To resolve the issue, try disabling your VPN temporarily and restarting the activation process. For a secure installatio... https://install-turbo-tax.com/download/