AFansHub

What is Guozi doing? The wifi support specifications are not linear iterations

by Poster May 29, 2025 38
The router at home consistently uses 2.4 G + 5G convergence. I use mbp m3max, but I don't pay attention to the network speed. Recently, I changed my wife to mba m4. When I downloaded it, I compared it and found that my network was obviously slow, so I checked it and found that the m3 mbp couldn't find the 5G band. I thought that the wifi was broken.... After changing channels, restarting, and canceling convergence, I finally found that 160MHz is not supported. After canceling, I connected to the 5G channel normally. Then I went to the official website and searched, but I couldn't find the M3 mbp wifi support specifications. The 2025 m4 including the m2 model clearly states that it supports 160MHz https://support.apple.com/zh-cn/guide/deployment/dep268652e6c/web Forget it if it doesn't support wifi7, m2 supports it, m3 doesn't support it, what kind of iteration is it, I really don't know what kind of wind Guozi has

Replies

  • Anonymous46 May 29, 2025
    Even if the router supports 160MHz, the 80MHz device should not be unable to connect
  • Poster May 29, 2025
    @ Anonymous46 Cancel convergence, 5G wifi cannot be found directly, just cancel 160MHz, netgear r9000
  • Anonymous1714 May 29, 2025
    Are you awake
  • Anonymous46 May 29, 2025
    @ Poster 15Pro Basically all devices before (including iPhone 15) do not support 160MHz, and the current mainstream routers in the market support 160MHz by default. If this were the case, it would have exploded long ago. Most Apple devices cannot connect to 5G band WiFi. If you think about it, you know it's impossible... My previous M1 Max didn't even have any problems with the 160MHz router. It's probably the compatibility problem of your specific case
  • Anonymous1715 May 29, 2025
    If you can't find it, you can also connect with the command line and specify ssid. Of course, 80mhz devices can connect to 160mhz. Why should fusion be turned on, and why should 2.4 g be turned on. In this era, 2.4 g can be turned off, and the whole house can be covered with multiple routing 5g.
  • Anonymous1602 May 29, 2025
    @ Anonymous1715 There are still pure n devices in this era. I have a Lenovo e540 at home and replaced it with an ssd and it works well
  • Anonymous11908 May 29, 2025
    @ Anonymous1715 The Wi-Fi version of the smart home at home is almost all 2.4 GHz. Even in this era, there are still a large number of 2.4 GHz devices!
  • Anonymous1716 May 29, 2025
    I remember correctly that Apple's 160m bandwidth is only supported after Wi-Fi6, and it only supported 6Ghz at first (this may be wrong). I searched for netgear r9000 or Wi-Fi5 devices (belonging to the magic modified device before Wi-Fi6 came out, the original 802.11 ad failed to enter the Wi-Fi6 standard), which is obviously not supported, but it is not compatible with 80m bandwidth normally, which is a bit surprising. Apple's Wi-Fi was the first to support the new standard back then, and it pursued speed. After Wi-Fi6, it fell behind in various ways. I hope it's just Broadcom's fault. I hope to catch up with it by changing to its own Wi-Fi chip this year
  • Anonymous1716 May 29, 2025
    I searched for netgear r9000 out of curiosity, and now it seems that it is a non-standard product of Wi-Fi5. The 160m bandwidth of Wi-Fi5 should not be supported by many devices. It is better to choose 80m, which will reduce interference, and the 160m bandwidth range involves DFS channels, also affects stability
  • Anonymous10729 May 30, 2025
    @ Anonymous1715 Most IoT at home still needs to use 2.4 Ghz
  • Anonymous348 May 30, 2025
    Down to earth 80Mhz, stability first.
  • Anonymous2659 May 30, 2025
    @ Anonymous1715 It seems that my brother doesn't use smart home devices much
  • Anonymous1839 May 30, 2025
    Convergence is the grossiest, easily jumping to the 2.4 Ghz band
  • Anonymous2081 May 30, 2025
    @ Anonymous1715 IoT devices are basically 2.4 g. Do you not need them in smart homes?
  • Anonymous9590 May 30, 2025
    Is 1 2.4 and 1 5 difficult
  • Anonymous2660 May 30, 2025
    It should be a non-standard 160Mhz pot, which will be backward compatible by default
  • Anonymous10965 May 30, 2025
    1. Devices that support Wi-Fi 6 (802.11 ax) can be connected to Wi-Fi 5 (802.11 ac) wireless routers; 2. The 5 GHz bandwidth of the wireless router is set to 160 MHz. As long as the device supports 802.11 ac or 802.11 ax, it can be connected normally. There is no such thing as an SSID with a device that supports 802.11 ac or 802.11 ax but cannot connect to a 160MHz bandwidth. 3. If the device only supports 802.11 ac, the wireless router supports 802.11 ax and the SSID authentication mode is set to WPA3-PSK, the device cannot be connected at this time. Therefore, for wireless routers using 802.11 ax at home, it is best to set the authentication mode of SSID to WPA2/WPA3-PSK mode to be backward compatible with devices that do not support WPA3-PSK. 4. There is no problem in setting 2.4 GHz and 5GHz to the same SSID. By modifying the properties of the wireless network card of the device, you can force the device to connect to 2.4 GHz or 5GHz first. Don't understand Macs, but it can be modified on Windows. 5. For home use, you can use the DFS channel, as long as all devices support it (domestic Android phones don't seem to support the DFS channel?). I don't know whether the MAC wireless network card driver is castrated. Windows computers can connect to the SSID of the DFS channel. 6. For home use, the bandwidth of 2.4 GHz is set to 20MHz, and the bandwidth of 5 GHz is set to 80 MHz (160 MHz is meaningless).
  • Poster May 30, 2025
    @ Anonymous10729 Most of the iot devices before 2010 did not support convergence. Later, the camera, timer switch and so on can be supported, and the direct connection can be kept at 2.4 ghz.
  • Poster May 30, 2025
    @ Anonymous1716 r9000 has the 5G 160MHz switch enabled, and there is no problem connecting Huawei mobile phone mate60pro. After carefully looking at Apple's official website, I am indeed a bit wrong about it ax @ Anonymous2661 GHz 160 MHz ax @ Anonymous2662 GHz 80 MHz
  • Poster May 30, 2025
    @ Anonymous1715 can't connect even if it's specified, just turn off 160MHZ; Most iot devices still only have 2.4. Of course, 2.4 is turned on to cover some rooms with poor signal