21000 Series

• 21000 Series | How to open ports for your 21000 and SN Series Defender Security System for Smartphone Viewing
• 21000 Series | 5-Step DVR Setup Tutorial Video
• 21000 Series | DVR Menu Walkthrough Series

• 21000 Series | Netviewer Remote Viewing
• How do I back up footage from my DVR?
• How do I set up email alerts?
• What effect does ‘Record Settings’ have on recorded footage?
• I can’t log into my DVR