If you use a hardware firewall or router to connect to the Internet, please be sure you have the latest firmware installed.

If you are using a software firewall, please be sure you have the latest version installed and updated. If you are using the Windows firewall, periodically run Windows Update to ensure you have the latest revisions.

If you are having problems logging in to the dialer, it is possible your firewall is blocking ports needed for the dialer to function properly.