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Why is QoS throttling transfers within my LAN?

Discussion in 'Tomato Firmware' started by JPorter, Jun 9, 2008.

  1. JPorter

    JPorter LI Guru Member

    I am having an odd (and new) problem with QoS on my router (WHR-HP-G54).

    For some reason, transfers from my server (on the wired LAN) to my laptop (on wireless) are dog slow when QoS is enabled. It's limiting wired-to-wireless data traffic to the "Outbound" cap configured in my QoS panel. When I disable QoS entirely, the speed jumps to what it should be.

    I thought the QoS rules only applied to LAN<->WAN transfers? Somebody set me straight on this one.


    Or... is my router fouled up somehow?


    Thanks in advance,

    Porter
     
  2. i1135t

    i1135t Network Guru Member

    Bump... this is happening to me too...
     
  3. JPorter

    JPorter LI Guru Member

    I don't get it. I don't think I've ever had this issue in the past.


    Does anyone have any idea what might be causing this? Hardware issue? Unusual bug in the firmware?
     
  4. Incidentflux

    Incidentflux Addicted to LI Member

    Yes! Happening here too.

    Access to my USR ADSL modem really slows down with QoS enabled. Have to turn it off, if I want to work my USR Modem. I always thought maybe my incorrect QoS rules were causing it.
     
  5. JPorter

    JPorter LI Guru Member

    I don't think that's what we're talking about.


    What I'm experiencing is transfers between the wired LAN and the wireless LAN being affected by the QoS system, which I thought was only supposed to throttle WAN connections. :confused:
     
  6. apelete

    apelete LI Guru Member

    It seems I have the exact same problem since using Tomato & QOS.
    I didn't understand why the local LAN transfers were so slow but never investigate it, but now that I know I'm not the only one I would like some explanations if someone has one.

    I really need to solve this one out, since I'm planning to buy a NAS I really need to be able to use the most of the 100Mbit my router is capable of.

    Thanks for any clue.
     
  7. JPorter

    JPorter LI Guru Member

    I emailed Jon for more information.
     
  8. jsmiddleton4

    jsmiddleton4 Network Guru Member

    #nvram set qos_pfifo=1


    Not saying you should run this, set this, but looking into it and seeing what it does may impact your lan....
     
  9. JPorter

    JPorter LI Guru Member

    What is the purpose, exactly?
     
  10. jsmiddleton4

    jsmiddleton4 Network Guru Member

    I'm not the one to explain it all. But I do encourage you to search and at least see if this might help.

    I have it enabled and do not see any slow down with QOS. However I have a very small network and probably don't even need QOS. My experience not a good guage.
     
  11. JPorter

    JPorter LI Guru Member

    Just to be clear... I'm not trying to optimize QoS here... I'm trying to fathom why QoS would have any effect on my LAN traffic at all. It was my understanding that QoS was only for WAN traffic.
     
  12. ipse

    ipse LI Guru Member

    I don't see the problem with Tomato 1.19 (official). Tested both wired and wireless connections.
     

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