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100Mbps fiber optic connection with Xiaomi Router 3

The Xiaomi Mi Router 3 supports internet speeds up to 100Mbps over both its WAN and LAN ports, so it can handle a 100Mbps fiber optic connection but cannot fully utilize faster connections.

Ethernet and WAN Limitations

The Xiaomi Mi Router 3 has Ethernet ports and a WAN port limited to 100Mbps, meaning that even if your fiber optic connection is faster than 100Mbps, the router will cap the speed at 100Mbps for wired connections . This limitation is due to the hardware design, which uses a MediaTek MT7620 SoC and 100Mbps Ethernet interfaces . As a result, any internet speed above 100Mbps will not be fully utilized when connected through the router's LAN or WAN ports.

Wireless Performance

The router supports dual-band Wi-Fi (2.4GHz and 5GHz) with 802.11ac), offering theoretical maximum speeds of 300Mbps on 2.4GHz and 867Mbps on 5GHz . In practice, the 5GHz band provides faster speeds at close range, but performance drops significantly at longer distances or through walls . The 2.4GHz band offers better coverage but lower speeds. For a 100Mbps fiber connection, the Wi-Fi is generally sufficient if devices are within reasonable proximity to the router.

Practical Implications

  • For a 100Mbps fiber connection, the Xiaomi Mi Router 3 can handle the full speed without bottlenecking, so you will get the expected internet performance on both wired and wireless devices within range .
  • For connections faster than 100Mbps, such as 300Mbps or 1Gbps fiber, the router will limit speeds to 100Mbps, making it unsuitable for higher-speed plans .
  • Device placement matters: For optimal Wi-Fi performance, keep devices close to the router, especially when using the 5GHz band .
  • Ethernet connections: If you need faster wired speeds, consider a router with gigabit LAN/WAN ports to fully utilize higher-speed fiber connections . In summary, the Xiaomi Mi Router 3 is adequate for a 100Mbps fiber optic connection, but it is not future-proof for faster internet plans due to its 100Mbps Ethernet limitation. For higher-speed connections, upgrading to a gigabit-capable router is recommended.
100Mbps fiber optic connection with Xiaomi Router 3 - E-Motional Optics & Connectivity

100Mbps fiber optic connection with Xiaomi Router 3 - E-Motional Optics & Connectivity [PDF]

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