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WRT54GS wired fast / wireless slow

Discussion in 'Networking Issues' started by dmcentee, Feb 21, 2007.

  1. dmcentee

    dmcentee Guest

    New WRT54gs v6. 3mb/s CenturyTel ADSL. Works OK

    When my PC is hardwired to the router I get ~ 2.5mb/s download. When I use a wireless connection from the same PC I can't get above 1.5mb/s download.

    Same results with another PC that I own - wireless is 1.5 mb/s or less.

    Both PC's are XP, using 802.11g on builtin wireless chipsets.

    Downloaded the latest firmware for the router and the PC wireless chipsets.

    Now I don't want to go really fast - but 2.5mb/s wireless should be attainable.

    Why am I losing 30% of my speed when going wireless?

    Changed the router to use channel 1; WEP on/off makes no difference.

    Puilling my hair out with this one.:mad:
     
  2. bimmersteve

    bimmersteve LI Guru Member

    Sounds like contention, but you mention WEP on/off makes no difference, so it's not likely freeloaders.

    Do you live in an apartment, or a house? i.e., do you see other AP's out there besides yours when you look at available wireless networks from the PC? (I'd try a higher channel besides channel 1.)

    Is there some other device in the house that's spewing RF near the AP? (Do you happen to live near an Air Force Base or in Langley, VA? :) )
     
  3. ifican

    ifican Network Guru Member

    This is a true barrel of monkeys that has been hashed out here many times and I expect before long this one will turn into the same but here goes: In my humble opinion and experience your are right on mark. Wireless by nature is slower and induces more overhead then a wired connection. Overhead = latency which cause the same about of data on the same speed line to take a little longer to get there = slower speed. I just did 6 total test, 3 each to the same laptop to verify the above and it turned out almost exactly 30%. Wired was right at 7Mb and wireless right at 5Mb. Now my only caveat is I have never used an enterprise class wireless device but I expect that it will be right on par with the rest.
     
  4. sirsquishy

    sirsquishy LI Guru Member

    Make sure your devices are connecting at the speed they need to.


    Some devices will connect at lower speeds when "power management" is turned on :)


    But, on my home wifi network I get 24MB/s on average and it will burst up to 54megs.
     
  5. ifican

    ifican Network Guru Member

    Run a speed test from a wired machine and then a wireless machine to internet speed test site at let me know what the difference is.
     
  6. sirsquishy

    sirsquishy LI Guru Member

    On both I get 9Megs down and 25.5k up.


    With a Heavy ( 4.5Gig ) Lan file Xfer the wireless drops down to 2.3Megs down 25.5k up.


    Im thinking that Wireless is a low Pri when Lan is active....just something to concider.
     

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