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DownSouth

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    DownSouth got a reaction from CA3LE in TCP Optimizer (program) results in no improvement   
    Because the problem is not in the parameters controlled by the TCP program.
    Your problem is almost certainly in your ADSL connection. It used to be good and your PC was using the same TCP settings.
    Login to 192.168.1.254 ID admin PW admin, or search for the default IP address, ID & PW on the net,
    and look at your downstream S/N numbers AND at the actual downstream speed which is negotiated between your modem and the DSLAM.
    The MAX allowed is what you paid for (3MB/s) often written as kb/s within the DSL section of the modem's web interface.
    Multiply by .85 to account for overhead, depending on the modem.
     
    S/N changes, going down as the speed goes up for the same signal level with problems beginning to occur at ~ 6db.
    What I wrote above is approximate. There are good articles about ADSL on the net if you wish more exact info.
     
    Below is my connection, though it's in Spanish since I live in Mexico. I translated part of it. Line has been active 38 minutes. Windy days cause connection to drop.
    I live 3.1km from the DSLAM so though I pay for up to 10mb/s (Telmex min speed) I can only get 3.5-4 reliably.
              Velocidad de línea ascendente (kbit/s) 383 upstream speed (limited by contract, and programmed into DSLAM) Velocidad de línea descendente (kbit/s) 3646 downstream speed (programmed into DSLAM by agreement with Telmex) Máximo ancho de banda ascendente (kbit/s) 1139 MAX up speed line will support Máximo ancho de banda descendente (kbit/s)  10200 MAX  down speed line will support Estándar de línea ADSL2+   as speed increases line standard changes GMT, ADSL, ADSL2, ADSL2+ Tipo de canal Interleaved  Relación señal ruido (ascendente dB)   29 S/N up Relación señal ruido (descendente dB)   12.9 S/N down   Should be >6 @ 3646 kbits/s Atenuación de línea ascendente (dB) 27.9 Atenuación de línea descendente (dB) 44.9 Potencia de salida ascendente (dBmV) 12.2 Potencia de salida descendente (dBmV) 18.9 CRC ascendente 0 CRC descendente 8 Cyclic Redundancy Check of downstream connection FEC ascendente 0 FEC descendente 31869 Forward Error Correction of downstream connection Nombre de la Tarjeta Broadcom      Brand of card in the DSLAM Retardo de Interleave(ascendente) 4   Retardo de Interleave(descendente) 8  
  2. Like
    DownSouth got a reaction from CA3LE in Hello,I have info and questions   
    Hello, the name is Rich and I'm located near Guadalajara, Mexico.
     
    I'm on a 4092/384 kb/s ADSL line connected via a 2Wire 2701HG-T ADSL modem/router/WAP in bridge mode feeding ->
     
    Linksys WRT54GL running Toastman's Tomato for VPN or QOS or BW limiting/splitting
    (only 1 works at a time with scripts to change when what is active)
    802.11g WAP active for the house's PCs, tablets, media player and cell phones.
    ETH2 -> Magicjack+ (VOIP)
     
    ETH4 -> 100 ft CAT5 cable to a Grandstream HT-486 (VOIP) in bridge mode feeding ->
    WRT54G v1.1  running Tomato 1.28 (non ND) with QOS to serve everything in the casita.
     
    BW splitting runs 0600-1100, then auto switches to QOS.
    at 1800 VPN client 2 turns on.
    QOS is then ineffective since everything goes through the VPN.
     At 2300 VPN, QOS & BW splitting are off.
     
    House uTorrent client is scheduled 100k from 0600-1800, off 1800-2300, 450k till 0600.
    Casita uTorrent clients are 450k 2300-1100, 100k till 1800, off till 2300.
     
    QOS works and it allows me and the tenants to co-exist on a slow connection with P2P, streaming, VOIP, etc all running at the same time.
     
    Will probably get an ASUS RT-12 for the VPN/IPv6 functions if Toastman can't
    implement VPN & QOS to work together. 3 cascaded routers! Latency anyone?
     
    I would like a way to get the results of speed tests sent each hour so I could extract the speeds and feed them to the QOS engine in the routers since that is needed for correct QOS functioning.
     
    I was a large scale computing engineer with Amdahl working with CPU's, storage, WAN's with X.25 packet switches, T1 muxes, ADPCM voice systems, etc for companies such as AT&T, Illinois Bell, State Farm, Helene Curtis, etc for 13 years then retired down here.
     
    Happy to have found this forum.
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