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Don't set transmission rate higher than 11 if 802.11b present

Discussion in 'Tomato Firmware' started by Sunspark, May 3, 2014.

  1. Sunspark

    Sunspark LI Guru Member

    Hi:

    I have a Lennox wifi thermostat which is a 802.11b device. I was experimenting with lowering the transmission rate this morning to more closely match the Internet WAN rate.

    Apparently if you manually set the transmission rate higher than 11 the b client cannot connect.

    Unfortunately, despite the WAN being nominally 8 megabit, setting a rate of 11 is not enough for full speed. You need 12 to 18 minimum for a 8 megabit Internet connection. I am not sure why, but this appears to be the case.

    It would have been fine at 11 back when 5M Internet connections were common. But not now, with packages being offered going up to 25M.

    As a result, it must be left on Auto. Since there is a 802.11b client present I also have CTS on as well.
     
  2. Quad5Ny

    Quad5Ny Connected Client Member

    The "play nice with your neighbors and other devices" setting for mixed b/g/n 2.4GHz (assuming you haven't changed any other defaults) are:

    Wireless Network Mode: Auto
    Channel: 1, 6 or 11 (Stay off of the in-between channels)
    Channel Width: 20MHz
    SSID: Broadcast
    Security/Encryption: (Preferably): Any mix of WPA2/WPA +AES (WPA +TKIP and WEP are hackable)
    ---
    Afterburner: Off
    CTS: Auto
    Bluetooth Coexistence: Preemption
    Preamble: Short (Almost every device supports the Short preamble)
    Frame Burst: Off
    802.11n Preamble: Mixed Mode
    WMM: Enabled
    APSD Mode: On
     
  3. Sunspark

    Sunspark LI Guru Member

    I use Bluetooth coexistence enable rather than preempt. I don't believe many/most devices will support that. I think the PS3 as a device that I have is one that doesn't recognize preemption. There is also a Bluetooth portable speaker here and a PDP wireless gaming headset that uses it's own dongle so I think it may be a proprietary radio.

    Enable has been shown to work and while theoretically preempt is better, few seem to support it.
     

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