1. Product Overview
The SonicWall TZ370 Gen7 Firewall is designed for growing Small to Medium Businesses (SMBs) requiring advanced network security. It delivers multi-gigabit firewall performance, integrating features like SD-WAN and comprehensive threat defense. This appliance is part of the SonicWall TotalSecure offering, which includes a suite of protection services to safeguard against modern cyber threats.
This manual provides essential information for the installation, configuration, operation, and maintenance of your SonicWall TZ370 firewall.
2. Key Features
- High Performance: Designed for throughput and scalability, offering multi-gigabit firewall performance.
- Advanced Threat Protection: Includes Gateway Anti-Virus, Intrusion Prevention System (IPS), Application Control, Content Filtering, Capture Advanced Threat Protection (ATP) sandboxing, and Real-Time Deep Memory Inspection (RTDMI).
- Encrypted Traffic Inspection: Protects against encrypted malware and intrusions using Deep Packet Inspection SSL (DPI-SSL).
- Secure SD-WAN: Intelligently manages traffic across multiple links to optimize cloud application performance and reduce costs.
- Comprehensive Service Suite: Bundled with Advanced Protection Service Suite (APSS) for continuous security updates and 24x7 support.
3. Physical Description
3.1 Front Panel

Figure 1: SonicWall TZ370 Front Panel. This image displays the front view of the TZ370 firewall, highlighting two USB 3.0 SuperSpeed ports, a Storage LED, Power LED, Test LED, Security LED, RJ45 Port LEDs, WAN X1 and X2 Port LEDs, LAN/MGMT X0 Port LED, and U0 WWAN LEDs for USB 5G/LTE connectivity.
- USB 3.0 SuperSpeed Ports (U0): Two ports for connecting external devices such as 5G/LTE modems or storage.
- LED Indicators:
- Power LED: Indicates the power status of the device.
- Test LED: Used for diagnostic purposes.
- Security LED: Indicates security-related activities or alerts.
- Storage LED: Indicates activity on connected storage devices.
- RJ45 Port LEDs (X0-X7): Indicate link status and activity for each Ethernet port.
- U0 WWAN LEDs: Indicate status for connected USB 5G/LTE devices.
3.2 Rear Panel

Figure 2: SonicWall TZ370 Rear Panel. This image shows the rear view of the TZ370 firewall, detailing the RJ45 Console Port, multiple RJ45 LAN/WAN ports (X0, X1, X2, X3, X4/X5/X6/X7), a SafeMode Button, Power Input, and a Grounding Screw.
- RJ45 Console Port: For direct console access to the device for initial configuration or troubleshooting.
- RJ45 Ports (X0-X7): Eight 1 Gigabit Ethernet ports. X0 is typically for LAN/Management, X1 and X2 are often designated for WAN, and X3-X7 can be configured for LAN or other purposes.
- SafeMode Button: Used to reset the device to factory defaults or enter SafeMode for firmware recovery.
- Power Input (12V DC): Connects to the provided power adapter.
- Grounding Screw: For connecting an earth ground wire to protect against electrical surges.
4. Setup Instructions
- Unpack the Device: Carefully remove the SonicWall TZ370 from its packaging. Verify all components are present: firewall appliance, power adapter, Ethernet cable, and documentation.
- Physical Placement: Place the firewall on a stable, flat surface or mount it in a rack (if applicable, with optional rackmount kit). Ensure adequate ventilation around the device.
- Connect Network Cables:
- Connect your Internet Service Provider's (ISP) modem or router to the WAN port (typically X1) on the SonicWall TZ370.
- Connect your internal network switch or a computer directly to the LAN port (typically X0) on the SonicWall TZ370.
- Connect Power: Connect the power adapter to the 12V DC power input on the rear panel of the firewall, then plug the adapter into a power outlet. The Power LED on the front panel should illuminate.
- Initial Configuration Access:
- Open a web browser on the computer connected to the LAN port.
- Navigate to the default IP address of the SonicWall appliance (e.g., http://192.168.168.168).
- Follow the on-screen wizard to complete the initial setup, including setting a new administrator password and configuring basic network settings.
5. Operating Instructions
Once the initial setup is complete, you can manage your SonicWall TZ370 firewall through its web-based management interface. This interface allows you to configure security policies, monitor network traffic, and manage various features.
- Accessing the Management Interface: Open a web browser and enter the IP address of your SonicWall appliance. Log in with your administrator credentials.
- Dashboard Overview: The dashboard provides a summary of the firewall's status, network activity, and security events.
- Configuring Security Services: Navigate to the security services section to enable and configure Gateway Anti-Virus, IPS, Content Filtering, and Application Control.
- Network Settings: Adjust WAN/LAN settings, configure DHCP, DNS, and routing as needed for your network environment.
- VPN Configuration: Set up Virtual Private Network (VPN) connections for secure remote access or site-to-site connectivity.
- Firmware Updates: Regularly check for and apply firmware updates to ensure your device has the latest security patches and features.
6. Maintenance
Regular maintenance ensures optimal performance and security of your SonicWall TZ370 firewall.
- Firmware Updates: Periodically check the SonicWall support portal for new firmware versions. Apply updates during off-peak hours to minimize disruption.
- Configuration Backups: Regularly back up your firewall configuration settings. This allows for quick restoration in case of an issue or hardware replacement.
- Log Monitoring: Review system logs and security event logs regularly to identify potential threats or performance issues.
- Physical Inspection: Ensure the device is free from dust and has adequate airflow. Check cable connections for security.
- Subscription Services: Ensure your Advanced Protection Service Suite (APSS) subscription is active and up-to-date to receive the latest threat intelligence and support.
7. Troubleshooting
This section addresses common issues you might encounter with your SonicWall TZ370 firewall.
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power / Device Not Turning On | Power cable disconnected, faulty power adapter, power outlet issue. | Check power cable connections. Test power adapter with another device if possible. Try a different power outlet. |
| Cannot Access Management Interface | Incorrect IP address, network connectivity issue, firewall blocking access. | Verify the correct IP address. Ensure your computer is on the same subnet as the firewall's management interface. Check physical cable connections. Temporarily disable client-side firewall. |
| No Internet Connectivity | WAN port not connected, incorrect WAN configuration, ISP issue, security policy blocking traffic. | Verify WAN cable connection. Check WAN interface settings (IP, DNS, Gateway). Contact your ISP. Review firewall access rules. |
| Slow Network Performance | High network traffic, misconfigured security services, outdated firmware, hardware limitations. | Monitor network usage. Review security service configurations (e.g., DPI-SSL, IPS). Ensure firmware is up-to-date. Consider network design optimization. |
For more detailed troubleshooting or persistent issues, refer to the official SonicWall support documentation or contact SonicWall technical support.
8. Specifications
The following table outlines the key technical specifications for the SonicWall TZ370 Gen7 Firewall.

Figure 3: Quick Glance Specifications for SonicWall TZ Series. This table provides a comparative overview of specifications for various TZ series models, including SOHO 250, TZ270, TZ350, TZ370, TZ400, and TZ470, covering multi-gig interfaces, expandable storage, redundant power, firewall inspection, DPI performance, IPsec VPN, maximum connections, SSO users, site-to-site VPN tunnels, VLAN interfaces, WiFi technology, and 5G USB modem support.

Figure 4: SonicWall Gen 7 TZ Series System Specifications (Part 1). This table details general firewall specifications for TZ270, TZ370, TZ470, TZ570, and TZ670 series, including operating system (SonicOS 7.0), interfaces (8x1GbE, USB 3.0, Console), wireless support, Power over Ethernet (PoE) support, storage expansion, management, redundant power supply, Single Sign-On (SSO) Users, VLAN interfaces, and maximum access points supported.

Figure 5: SonicWall Gen 7 TZ Series System Specifications (Part 2). This table continues the detailed specifications for TZ270, TZ370, TZ470, TZ570, and TZ670 series, focusing on firewall and VPN performance metrics such as firewall inspection throughput, threat prevention throughput, application inspection throughput, IPS throughput, TLS/SSL inspection and decryption throughput, IPsec VPN throughput, maximum connections, VPN tunnels, VPN clients, encryption/authentication, key exchange, route-based VPN, certificate support, VPN features, global VPN client platforms, security services (Gateway Anti-Virus, Anti-Spyware, Intrusion Prevention, DPI SSL, Content Filtering Service, Application Visualization, Application Control, Capture Advanced Threat Protection), and networking protocols.
General Specifications (TZ370)
- Product Dimensions: 5.31 x 7.48 x 1.38 inches
- Item Weight: 1.8 pounds
- Item Model Number: TZ370
- Interfaces: 8x1GbE, 2 USB 3.0, 1 Console
- Firewall Inspection Throughput: 3 Gbps
- Threat Prevention Throughput: 1 Gbps
- Application Inspection Throughput: 1.5 Gbps
- IPS Throughput: 1.5 Gbps
- VPN Throughput: 1.3 Gbps
- Maximum Connections: 900,000
- Wireless Communication Standard: 802.11ac (for TZ370W model, not base TZ370)
- Operating System: SonicOS 7.0
- Storage Expansion: Optional up to 256 GB
- Power: 12V DC input
9. Product Video Overview
Video 1: SonicWall TZ370 Firewall Overview. This video provides a brief visual introduction to the SonicWall TZ370 and TZ370W firewalls, highlighting key physical features like USB 3.0 ports, Ethernet ports, and mentioning performance metrics such as firewall inspection throughput, threat prevention throughput, application inspection throughput, IPS throughput, and VPN throughput.
10. Warranty and Support
The SonicWall TZ370, when purchased with the Advanced Protection Service Suite (APSS), includes comprehensive support and warranty benefits.
- Advanced Protection Service Suite (APSS): This suite typically includes 24x7 support, firmware updates, and access to the latest threat intelligence. The duration of the service suite is specified at the time of purchase (e.g., 1-year, 2-year, 3-year).
- Technical Support: For technical assistance, product registration, or to access support resources, please visit the official SonicWall support website. Ensure you have your product serial number available.
- Warranty Information: Specific warranty terms and conditions are provided with your product documentation and are available on the SonicWall website.
For the most current information regarding your warranty and support services, please refer to the official SonicWall website or the documentation included with your purchase.





