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Wired speed vs Wireless speed...

Discussion in 'HyperWRT Firmware' started by Lumute, Jun 13, 2006.

  1. Lumute

    Lumute Network Guru Member

    I just changed ISP to 3Web (6000 kbps down / 800 kbps up).

    I am using a WRTSL54GS with Thibor 15b.

    Doing some speed tests using speakeasy, connected to the router using an ethernet cable got 5761 kbps down and kbps 772 up which is pretty good...

    Then configured wireless using WPA2, with only my computer connected to the wireless and right next to the router with an excelent signal quality and the best I could get is 3892 kbps down and kbps 770 up :(

    Wireless G should be more than enough to handle 6 Mbps right? could it be that my encriptation is too high?

    Any Idea on how can I tweak this to get the whole 6 Mbps using wireless?

    Thanks!
     
  2. Toxic

    Toxic Administrator Staff Member

    frameburst on?

    try

    Frame Burst Enabled
    Beacon Interval 50
    Fragmentation Threshold 2304
    RTS Threshold 2304

    do you have afterburner on of off?
     
  3. Lumute

    Lumute Network Guru Member

    Hi Toxic, thanks for the reply!

    Frame Burst is Enabled

    I do not use afterburner as my wireless card is an intel one...

    I did change the beacon interval and both thresholds to what you suggest but the most I could get down is 3725 kbps... :(
     
  4. mstombs

    mstombs Network Guru Member

    What speed can you transfer from a wired computer to the wireless? - should be around 20Mbps, if still <4Mbps I reckon your wireless must be running down at wireless - 11b speeds not - 11g.

    If only a problem with the internet try the TCP/IP analyzer at speedguide.net. These settings can cripple a wired connection - not really sure how they are automatically adapted for wireless.
     
  5. Lumute

    Lumute Network Guru Member

    Hello mstombs,

    That is a good idea!

    I used Qcheck with two computers and it reports around 12 Mbps from wireless to wireless and around 22 Mbps from wireless to wired.

    So, if my wireless can transfer to up to 22 Mbps, why wireless to internet is caped at 4 Mbps while wired to internet can go up to almost 6Mbps? this is weird...

    speedguide.net suggested to increase the RWIN, but if I understand right, this is a general parameter, I mean, this should not be affecting wireless only...
     
  6. Toxic

    Toxic Administrator Staff Member

    Are you using mixed mode? B and G? try using one or the other. and reset the wireless channel to either 1 or 11
     
  7. Lumute

    Lumute Network Guru Member

    Ok, both clients are G so I tried with G Only mode, same thing... I was using channel 1 so I changed to 11 and also same thing.

    I also tried without any encriptation on the wireless... no difference... :(

    Has anybody been able to get speeds higher than 4 Mbps wireless to internet with a WRTSL54GS? of course, your intrnet connection needs to be higher than 4 Mbps also...
     
  8. Lumute

    Lumute Network Guru Member

    More tests:

    I put one computer with a switch between the router and the modem with an outside IP and tested from the inside using Qcheck:

    Using wireless I get 22 Mbps (same as wireless to wired all inside)
    Using wire I get 71.429 Mbps (which I assume is the max troughput of this box???)

    so, If I can get 22 Mbps from wireless on the inside to a computer on the outside, why speedtests to the internet drop to 4 Mbps???
     

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