Why MT7621AT Wi-Fi Range Is Limited and How to Extend It

2025-06-13FAQ40

Why MT7621AT Wi-Fi Range Is Limited and How to Extend It

Why MT7621AT Wi-Fi Range Is Limited and How to Extend It

The MT7621AT chip is commonly used in many consumer routers, offering a balance between performance and affordability. However, users often experience limited Wi-Fi range, which can negatively affect the overall performance of the network. Understanding the reasons behind this issue and how to extend the Wi-Fi range is essential for a better user experience. Let's break it down step by step.

1. Why Is MT7621AT Wi-Fi Range Limited?

There are several factors that can contribute to the limited Wi-Fi range of routers using the MT7621AT chip:

Router Placement: The physical location of your router can significantly affect the Wi-Fi coverage. Routers placed near walls, metal objects, or in enclosed spaces may face interference, limiting the signal's reach. Interference from Other Devices: Wi-Fi operates on the 2.4GHz and 5GHz bands. The 2.4GHz band is especially prone to interference from other household devices such as microwaves, cordless phones, baby monitors, and even neighboring Wi-Fi networks. This can reduce the effective range and speed of the Wi-Fi. antenna Limitations: The MT7621AT-based routers might come with built-in or external Antennas that have limited range and Power . Some routers may only have 2 or 3 Antennas , which may not be sufficient for covering large areas or multiple floors. Firmware and Software Limitations: Outdated firmware or incorrect settings may prevent the router from reaching its full potential. Some routers may also have limitations in their software that restrict the transmission power or optimal channel selection. Network Congestion: In environments with many devices connected to the same network, especially in apartment complexes or densely populated areas, network congestion can affect Wi-Fi performance. Too many devices sharing the same bandwidth can reduce the effective range and speed of your connection. Physical Barriers: Dense walls, floors, and ceilings, as well as large furniture, can block or weaken the Wi-Fi signal. If the router is placed far away from where you need a strong connection, the signal may not penetrate well. 2. Solutions to Extend the Wi-Fi Range

To solve the issue of limited Wi-Fi range with the MT7621AT router, you can take the following steps:

Step 1: Optimize Router Placement Centralize Your Router: Place the router in a central location, ideally high up (e.g., on a shelf or wall mount), and away from walls, large metal objects, and electronic devices. Avoid Obstructions: Ensure the signal has minimal physical barriers to pass through. For example, place the router away from thick walls, mirrors, or furniture. Step 2: Reduce Interference Use the 5GHz Band: The 5GHz band is less congested than the 2.4GHz band and offers better speeds with less interference. Many modern routers support dual-band Wi-Fi, so make sure you're connected to the 5GHz band if possible. Change Channels: The 2.4GHz band is shared by many devices and networks. Access the router’s settings and try changing the Wi-Fi channel to one with less interference. Channels 1, 6, and 11 are commonly used, but experimenting with other channels might help. Limit Electronic Interference: Avoid placing the router near microwaves, cordless phones, or other electronics that may cause signal interference. Step 3: Upgrade the Antennas Invest in High-Gain Antennas: Many MT7621AT routers come with basic antennas. You can replace them with high-gain antennas, which can improve the signal strength and range. Position Antennas Correctly: Ensure the antennas are positioned vertically or at an optimal angle to maximize coverage. Step 4: Update Router Firmware Check for Firmware Updates: Manufacturers regularly release firmware updates that can improve performance and fix bugs. Ensure your router is running the latest firmware for better stability and performance. Reset Router Settings: If you're facing persistent issues, consider resetting the router to its factory settings and configuring it again. Sometimes, a fresh start can resolve underlying software glitches. Step 5: Reduce Network Congestion Limit Device Connections: If too many devices are connected, it can bog down the network. Disconnect any unnecessary devices or prioritize important devices via Quality of Service (QoS) settings in the router. Use Wired Connections: Whenever possible, connect devices like desktop computers or gaming consoles to the router via Ethernet. This reduces the load on the Wi-Fi network. Step 6: Extend Wi-Fi Coverage with Additional Devices Use a Wi-Fi Extender or Mesh System: If your home or office is large, you can use a Wi-Fi extender or mesh system to ensure better coverage in distant areas. A mesh system is particularly effective because it uses multiple nodes that communicate with each other, providing seamless coverage throughout the area. Powerline Adapters: Another solution is using powerline adapters, which use your home’s electrical wiring to extend the network connection to different rooms. This is especially useful when Wi-Fi signals can’t reach certain areas due to walls or floors. Step 7: Optimize Router Settings Change Transmission Power: Some routers allow you to adjust the transmission power. Increasing it might extend the range, but be cautious of too much power, as it could cause interference in other parts of the network. Adjust the Bandwidth: If you're using the 2.4GHz band, set the bandwidth to 20MHz to avoid interference. On the 5GHz band, setting it to 40MHz or 80MHz might help improve performance. 3. Conclusion

Limited Wi-Fi range with MT7621AT routers can result from a variety of factors such as router placement, interference, antenna quality, and network congestion. By following the steps above, you can significantly improve your Wi-Fi range. Start by optimizing the placement, reducing interference, upgrading antennas, updating firmware, and considering additional devices like extenders or mesh systems. These solutions can ensure you get the most out of your MT7621AT router, providing you with a more stable and widespread Wi-Fi connection.

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