September 21, 2025

One Ethernet run between BGW320 and RAX120/Unraid room — how do I make this schematic actually work?

Hi everyone, I’ve attached a diagram of my desired setup and the goals I’m trying to achieve.

What you’ll build / learn

In this tutorial, you will learn how to set up a reliable home network using an Ethernet run between your BGW320 modem and RAX120 router, ensuring optimal performance for your Unraid server. This guide will walk you through the necessary steps to achieve a stable connection, manage your devices effectively, and troubleshoot common issues that may arise during the setup process. By the end of this tutorial, you will understand how to configure your network to support various devices, including IoT gadgets, while maintaining security and performance.

You will also explore the importance of VLANs (Virtual Local Area Networks) in isolating devices, which can enhance security and performance. Additionally, this tutorial will cover the differences between 2.4GHz and 5GHz frequency bands, helping you select the best options for your devices. This knowledge will empower you to make informed decisions about your home network setup.

Ultimately, this guide aims to provide you with a comprehensive understanding of home networking principles, enabling you to create a robust and efficient network that meets your needs.

Why it matters

Setting up a home network correctly is vital for several reasons. First and foremost, a well-configured network ensures that all your devices can connect to the internet reliably. With the increasing number of smart devices in our homes, having a stable connection is more important than ever. A poorly set up network can lead to frequent disconnections, slow speeds, and frustration when trying to stream content or work from home.

Moreover, understanding how to manage your network can significantly enhance your online security. By isolating certain devices on VLANs, you can protect sensitive information and reduce the risk of unauthorized access. This is particularly relevant for IoT devices, which are often vulnerable to attacks. By segmenting your network, you can create a safer environment for your personal data.

Finally, knowing how to troubleshoot common issues can save you time and money. Instead of calling a technician for every problem, you can address many issues yourself, ensuring that your network remains functional and efficient. This knowledge empowers you to take control of your home networking setup.

Prerequisites

Before you begin, ensure you have the necessary equipment and access to your network settings. You will need a BGW320 modem, an RAX120 router, and an Ethernet cable long enough to connect the two devices. It is also advisable to have access to a computer or smartphone to manage your network settings.

Familiarity with basic networking concepts will be beneficial, though not mandatory. Understanding terms like IP address, DHCP, and VLAN will help you navigate the setup process more easily. If you are unfamiliar with these concepts, consider doing a bit of research beforehand to make the process smoother.

Lastly, ensure that your devices are updated with the latest firmware. This can prevent compatibility issues and improve the overall performance of your network. Check the manufacturer’s website for any updates for your BGW320 and RAX120 devices.

Step-by-step

Begin by connecting your BGW320 modem to the internet. Use the provided instructions from your ISP to ensure a proper setup. Verify that the modem is functioning correctly by checking the LED indicators.
Next, take your Ethernet cable and connect one end to the LAN port of the BGW320. Ensure that it is securely plugged in to avoid connectivity issues.
Connect the other end of the Ethernet cable to the WAN port of your RAX120 router. This establishes a direct connection between your modem and router, allowing for efficient data transfer.
Power on your RAX120 router. Wait for a few moments until the router completes its boot-up process. The LED indicators will show when it is ready for configuration.
Access the RAX120’s web interface by entering its IP address into your web browser. The default IP address is usually 192.168.1.1. Log in using the default credentials, which can be found in the router’s manual.
Once logged in, navigate to the WAN settings. Ensure that the connection type is set to DHCP, allowing the router to obtain an IP address from the BGW320 automatically.
Configure your wireless settings by selecting a unique SSID (network name) and a strong password. This step is crucial for securing your Wi-Fi network from unauthorized access.
Next, set up VLANs if desired. This can help isolate devices such as IoT gadgets from your main network, enhancing security. Refer to your router’s manual for specific VLAN setup instructions.
Save your settings and reboot the router to apply the changes. Wait for the router to restart completely before proceeding.
Test your connection by connecting a device to the RAX120’s Wi-Fi network. Check the internet speed and stability to ensure everything is functioning as expected.
If you have any IoT devices, connect them to the appropriate VLAN or network. Monitor their performance to ensure they are operating correctly.
Finally, regularly check for firmware updates for both the BGW320 and RAX120. Keeping your devices updated is essential for maintaining security and performance.

Best practices & security

To ensure your home network remains secure and efficient, follow these best practices. First, always use strong, unique passwords for your Wi-Fi networks. Avoid using easily guessable information and consider using a password manager to generate and store complex passwords securely.

Regularly update the firmware on your BGW320 and RAX120 devices. Manufacturers often release updates that fix security vulnerabilities and improve performance. Set a reminder to check for updates at least once a month.

Implement VLANs to segment your network. This is particularly important for homes with multiple IoT devices, as it helps to isolate them from your main network, reducing the risk of unauthorized access. Ensure that each VLAN is configured with appropriate security measures.

Common pitfalls & troubleshooting

One common pitfall when setting up a home network is neglecting to secure your Wi-Fi. Failing to change the default SSID and password can leave your network vulnerable to unauthorized access. Always ensure that you set a unique SSID and a strong password during setup.

Another issue may arise from incorrect Ethernet connections. Ensure that the Ethernet cable is firmly connected to both the BGW320 and RAX120. If you experience connectivity issues, try using a different Ethernet cable or port to rule out hardware problems.

If you encounter slow internet speeds, check for interference from other devices. Ensure that your router is placed in a central location away from walls and obstructions. Additionally, consider adjusting the channel settings in your router’s interface to minimize interference.

Alternatives & trade-offs

Option	Pros	Cons
Powerline Adapters	Easy to set up, uses existing electrical wiring	Speed can be affected by electrical interference
Mesh Wi-Fi Systems	Provides extensive coverage, easy to expand	More expensive than traditional routers
Wi-Fi Extenders	Inexpensive, improves coverage	Can reduce bandwidth, may introduce latency

When considering alternatives to a direct Ethernet run, various options exist, each with its advantages and disadvantages. Powerline adapters are a convenient solution that utilises your home’s electrical wiring, making them easy to set up. However, their performance can be affected by electrical interference, which may not provide the reliability you need.

Mesh Wi-Fi systems are another popular choice, offering extensive coverage and the ability to easily expand your network. While they provide excellent performance, they tend to be more expensive than traditional routers. Wi-Fi extenders can also enhance coverage but may reduce bandwidth and introduce latency, which could impact your online experience.

What the community says

The home networking community is generally positive about the importance of proper setup and configuration. Many users share their experiences and tips on forums, emphasising the significance of securing your network and understanding the capabilities of your devices. Users often recommend taking the time to read manuals and online resources to fully grasp the features of their equipment.

FAQ

Q: How do I know if my Ethernet cable is working properly?

A: To check if your Ethernet cable is functioning correctly, ensure that it is securely connected to both the modem and router. You can also test it by connecting a different device to see if it establishes a connection. If you continue to experience issues, consider replacing the cable or testing it with another device.

Q: What is the difference between 2.4GHz and 5GHz?

A: The primary difference between 2.4GHz and 5GHz is the range and speed. The 2.4GHz band offers a longer range but slower speeds, making it suitable for devices that are further away from the router. In contrast, the 5GHz band provides faster speeds but has a shorter range, ideal for devices located close to the router.

Q: How can I improve my Wi-Fi signal strength?

A: To improve your Wi-Fi signal strength, ensure your router is positioned in a central location and elevated off the ground. Avoid placing it near walls or large metal objects that can cause interference. Additionally, consider changing the Wi-Fi channel in your router settings to reduce congestion.

Q: What should I do if I forget my router password?

A: If you forget your router password, you can reset the router to its factory settings by pressing the reset button, usually located on the back of the device. After resetting, you will need to set up your network again using the default credentials found in the manual.

Q: Are VLANs necessary for a home network?

A: While VLANs are not strictly necessary for a home network, they can enhance security and performance, especially in homes with multiple IoT devices. By segmenting your network, you can isolate devices and reduce the risk of unauthorized access.

Q: How often should I update my router’s firmware?

A: It is advisable to check for firmware updates at least once a month. Keeping your router’s firmware up to date is crucial for maintaining security and performance, as manufacturers often release updates to address vulnerabilities and improve functionality.

Source

For further details and community discussions, visit the original post on Reddit: One Ethernet run between BGW320 and RAX120/Unraid room.