• From the phone's local menu interface, press Menu > Settings > Advanced (default password: 456) > Administration Settings > Network Configuration > Server Menu.
• Set Server Type to HTTP.
• Input Server Address as voipt2.polycom.com/404
• Don't forget to clear the username and password.
• Reboot the device and allow it time to update. Do not unplug the phone during updates.
• Once the update is completed you will need to reconfigure your device with your user information and device ID and password.