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WRT54GL wifi throughput issue

Discussion in 'Tomato Firmware' started by buffalove, Jan 21, 2012.

  1. buffalove

    buffalove Networkin' Nut Member


    I recently upgraded to RR Extreme with 30 down and 5 up. Through the LAN interface i am getting the advertised speeds but can't achieve the same speed through wifi with the same laptop.

    The max DL i can get with wifi is 19.xx Mbps. Upload is fine at 5 Mbps.

    I have latest SHIBBY firmware
    WPA2 with AES on Channel 1
    Ubee modem in bridge mode, wifi disabled.

    I tried changing the regions, and changing the channels but all yield the same result, its either 19 Mbps or less.

    Are there optimized builds that can handle 30 Mbps down?
  2. darksamus

    darksamus Networkin' Nut Member

    I can never get wifi speed above 21mbps on G-only speed, could be the limit. I have a N-wireless router and I can get over 21mbps on 2.4ghz.
  3. Engineer

    Engineer Network Guru Member

    About the same here. Was never able to get more than 20-22Mbps on a WRT54G router to WRT54G-TM bridge (both running Tomato USB). About the same from the Asus WL-520GU to WRT54G-TM Bridge.
  4. Toastman

    Toastman Super Moderator Staff Member Member

    Which, if you use Google to look for an explanation, is pretty average throughput for a 54mbps "G" connection with wifi. (Which is why all the pros plug in a cable :) )
  5. Gaius

    Gaius Networkin' Nut Member

    I suggest the OP buy the RT-N16 for a good, cheap and effective N router that runs great on the Shibby firmware.
  6. digitalgeek

    digitalgeek Network Guru Member

    WiFi is not full duplex, so your throughput will always be half of the connection speed.

    20-24 is about right (19 is normal in a noisy neighborhood)
  7. Monk E. Boy

    Monk E. Boy Network Guru Member

    As I recall the underlying problem is 54Mb is the signaling, not transmit, speed. On 100Mb Ethernet the signal runs at 110Mhz but due to wired efficiencies gets 100Mb from it. Wireless is far less efficient, and the transmit speed suffers as a result.

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