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Thread: Wanna give a shot and see what's wrong with our connection?

  1. #1

    Wanna give a shot and see what's wrong with our connection?

    BEFW11S4 Linksys 802.11b router.
    4 PCs and 1 Laptop connected
    Some Ambit modem
    3mb down, 256kb up.

    Basically everytime I use BitTorrent, no matter what client, tracker, connection count or upload speed, one of my roommate bitches. Is there something nasty with our connection that I should look at?

    Later I'm going to try replacing his splitter with mine, in hopes mine is higher quality. (Most expensive Radio Shack had)

    Upstream Channel ID: 5
    Upstream Transmit Power Level: 44.5 dBmV
    Upstream Symbol Rate: 2560 Ksym/sec
    Upstream Frequency: 23000000 Hz
    Upstream Mini-Slot Size : 4

    Downstream Lock : Locked
    Downstream Frequency : 633000000 Hz
    Downstream Modulation: QAM256
    Downstream Interleave Depth: 32
    Downstream Receive Power Level: -5.3 dBmV
    Downstream SNR: 33.2 dB

    TCP options string = 020405b401010402
    MTU = 1500
    MTU is fully optimized for broadband.
    MSS = 1460
    Maximum useful data in each packet = 1460, which equals MSS.
    Default Receive Window (RWIN) = 64240
    RWIN Scaling (RFC1323) = 0 bits
    Unscaled Receive Window = 64240

    RWIN is a multiple of MSS
    Other values for RWIN that might work well with your current MTU/MSS:
    513920 (MSS x 44 * scale factor of 8)
    256960 (MSS x 44 * scale factor of 4)
    128480 (MSS x 44 * scale factor of 2)
    bandwidth * delay product (Note this is not a speed test):

    Your RcvWindow limits you to: 2569.6 kbps (321.2 KBytes/s) @ 200ms
    Your RcvWindow limits you to: 1027.84 kbps (128.48 KBytes/s) @ 500ms
    MTU Discovery (RFC1191) = ON
    Time to live left = 116 hops

    TTL value is ok.
    Timestamps (RFC1323) = OFF
    Selective Acknowledgements (RFC2018) = ON
    IP type of service field (RFC1349) = 00000000

    Basically the ping goes from 80 to 400 when I'm using bittorrent or something. Is there really an issue or is my roommate just a bandwidth nazi who hates a +100 ping and plays FPS games 12 hours a day instead of going to class or sleeping?

  2. #2
    Junior Member MadDoctor's Avatar
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    Apr 2001
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    People will forget what you said... and people will forget what you did... but people will never forget how you made them feel.

  3. #3
    Thanks. Oh well. He can just suffer between 3 am and noon when he should be at school or sleeping.


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