So, Wi-Fi speed is usually higher in the 5 GHz band than in the 2.4 GHz band. The advantage of the 5 GHz band is that it’s (currently) less crowded. All access points support the 2.4 GHz band, while most newer access points also support the new 5 GHz band. Wi-Fi channels are selected from a so called “frequency band”. Computers recognize Wi-Fi networks by their SSIDs, not by the channel they use. However, if you really want to manually select the Wi-Fi channels, use different channels for each access point (if possible). Most modern Wi-Fi access points can choose their Wi-Fi channels automatically and you should usually let them do this. As far as I understand it, on the first generation you need to plug your Ethernet cable into the (only-existing) Ethernet port instead. Note: I’ve only tested this with an AirPort Express Base Station of the second generation. You need to plug your Ethernet cable into the WAN port – not the Ethernet port. It’ll then pick the one that’s best suited (usually the one with the best signal strength). In “Wireless” section, don’t use “Extend a wireless network”! Instead, use “Create a wireless network” and enter the same SSID and Wi-Fi encryption as the network you’re extending.īackground info: If a computer finds multiple Wi-Fi networks with the same SSID, it’ll assume they represent the same network.This is called roaming and has existed since the earliest days of Wi-Fi.įor the AirPort Express Base Station (and maybe other Wi-Fi access points as well) there are three things you need to know: Extending Wi-Fi networks over Ethernet (roaming) ∞įortunately, there is an alternative: extending Wi-Fi networks over Ethernet (cables). While this will probably have no real effect on your surfing speed, the speed of copying files from one computer to another will be drastically reduced. The disadvantage is that this will reduce your wireless bandwidth (by 50% in the worst case). The advantage is that you don’t need any cables to extend the range of your network. So, the AirPort Express Base Station will communicate with your other access point(s) over Wi-Fi. The catch here is, though, that this will extend your Wi-Fi network over Wi-Fi.
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