PN provides remote users with secure access to corporate Intranets. VPN traffic is usually encrypted. For this reason, Propel Accelerator does not speed up Web pages accessed over VPNs. However, Propel Accelerator automatically allows non-accelerated surfing over VPN connections. When Propel Accelerator is accessing VPN pages, a yellow triangle (similar to a yield sign) appears on the Propel Accelerator icon in the taskbar to let you know that Propel Accelerator is temporarily unavailable.