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Thread: Help on tweaking.

  1. #1
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    Help on tweaking.

    I don't know very much about tweaking, so I'm here for a little help...
    My PC sucks, it's a AMD 350 with 192 RAM.
    My connection is 256k/128k Cable, MotorolaSB4200.

    What I have to do? And, if someone can help me uncapping, please do it at my ICQ:
    68040171

    Thanks.
    -Packet Loss realy sucks -
    I'm brazilian, so sorry about my bad english

  2. #2
    Dr Tweak mnosteele52's Avatar
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    Download Cablenut from my signature and try the following settings:

    BcastNameQueryCount - 1
    BcastQueryTimeout - 100
    BSDUrgent - 1
    CacheTimeout - 600000
    DefaultRecvWindow - 17520
    DefaultTTL - 128
    EnableDNS - 0
    GlobalMaxTcpWindoSize - 17520
    KeepAliveInterval - 500
    KeepAliveTime - 14400000
    Lanabase - 0
    LocalCopyMade - 1
    MaxConnections - 99
    MaxConnectRetries - 5
    MaxDataRetries - 64
    NameTableSize - 255
    NameSrvQueryTimeout - 100
    PMTUBlackHoleDetect - 0
    PMTUDiscovery - 1
    RoutingBufSize - 146432
    RoutingPackets - 100
    SackOpts - 1
    SessionKeepAlive - 7200
    SessionTableSize - 255
    Size/Small/Medium/Large - 3
    Tcp1323Opts - 0
    TcpTimedWaitDelay - 30
    MaxDupAcks - 2
    DefaultTOS - 92
    IGMPLevel - 2
    MaxConnectionsPer1_0Server - 10
    MaxConnectionsPerServer - 8


    Help & Tips broadbandnuts.com - CableNut Tcp/Ip Analyzer TCPOptimizer drtweak.com - Dr Tweak

  3. #3
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    Thanks man
    -Packet Loss realy sucks -
    I'm brazilian, so sorry about my bad english

  4. #4
    Rudeboy Mohan-san's Avatar
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    Re: Help on tweaking.

    Originally posted by Tio-Fu
    I don't know very much about tweaking, so I'm here for a little help...
    My PC sucks, it's a AMD 350 with 192 RAM.
    My connection is 256k/128k Cable, MotorolaSB4200.

    What I have to do? And, if someone can help me uncapping, please do it at my ICQ:
    68040171

    Thanks.
    You do know uncapping is illegal right? and that if you get caught....well we'll see.

  5. #5
    Maneater JawZ's Avatar
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    I see you are using Win98...if so you need this patch:

    http://www.speedguide.net/files/vtcp386/236926USA8.EXE

    Microsoft Vtcp.386 Update ( read before installation)
    The following program directly from Microsoft supposedly fixes a bug in Vtcp.386. It should be installed on Windows 95, 98 or 98SE only. Windows ME already has this fix installed.

    According to Microsoft, because of a math error, the Windows 9x TCP/IP stack incorrectly computes a timer used to retransmit packets (based on round trip time to a server). When you are transmitting packets over high-speed/high-delay networks, such as any broadband Internet connection, this can result in unnecessary retransmissions and lower throughput... This fix helps reduce retransmission of packets, therefore improving the overall performance of the TCP/IP stack. While It achieves that, in some systems it might also reduce throughput a bit, since it increases the wait before a packet is retransmitted. If you decide to install this fix, backup, or rename Vtcp.386, located in the \Windows\System directory, so you will have a way of going back to your original setting. You can download the Microsoft fix directly from here, please get the one corresponding to your version of Windows :

    http://www.speedguide.net/files/vtcp386/236926USA8.EXE

    ...formerly the omnipotent UOD

  6. #6
    Dr Tweak mnosteele52's Avatar
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    That is only required to enable large window support (RWINs of 65535 or higher), with his caps there is no point in raising his RWIN anywhere near that.
    Help & Tips broadbandnuts.com - CableNut Tcp/Ip Analyzer TCPOptimizer drtweak.com - Dr Tweak

  7. #7
    Maneater JawZ's Avatar
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    Originally posted by mnosteele52
    That is only required to enable large window support (RWINs of 65535 or higher), with his caps there is no point in raising his RWIN anywhere near that.
    I don't believe that this fix is just for large window support. Maybe Phillip will correct me if I'm wrong. From what I have read, this is a timer issue as it relates to retransmits. If you look at his other thread where he said he is getting packet loss and the high ping...i just thought it may be worth a shot.

    Tio-Fu,

    Goto a DOS prompt and type this in exactly:

    netstat -s>netstat.txt

    you should get an output like this:


    IP Statistics

    Packets Received = 37072
    Received Header Errors = 0
    Received Address Errors = 0
    Datagrams Forwarded = 0
    Unknown Protocols Received = 0
    Received Packets Discarded = 0
    Received Packets Delivered = 37072
    Output Requests = 34167
    Routing Discards = 0
    Discarded Output Packets = 0
    Output Packet No Route = 0
    Reassembly Required = 0
    Reassembly Successful = 0
    Reassembly Failures = 0
    Datagrams Successfully Fragmented = 0
    Datagrams Failing Fragmentation = 0
    Fragments Created = 0

    ICMP Statistics

    Received Sent
    Messages 3 5
    Errors 0 0
    Destination Unreachable 0 2
    Time Exceeded 0 0
    Parameter Problems 0 0
    Source Quenchs 0 0
    Redirects 0 0
    Echos 0 3
    Echo Replies 3 0
    Timestamps 0 0
    Timestamp Replies 0 0
    Address Masks 0 0
    Address Mask Replies 0 0

    TCP Statistics

    Active Opens = 2057
    Passive Opens = 1
    Failed Connection Attempts = 3
    Reset Connections = 1348
    Current Connections = 1
    Segments Received = 30330
    Segments Sent = 27392
    Segments Retransmitted = 20

    UDP Statistics

    Datagrams Received = 6736
    No Ports = 6
    Receive Errors = 0
    Datagrams Sent = 6749


    Do this now and post back here the results which will be in your root directory called netstat.txt.

    Copy and paste here:

    Then we'll see what we need to do.

    ...formerly the omnipotent UOD

  8. #8
    Dr Tweak mnosteele52's Avatar
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    You are exactly right again UOD, I guess it pays to fully read something rather than brush right through it - no excuse on my part.
    Help & Tips broadbandnuts.com - CableNut Tcp/Ip Analyzer TCPOptimizer drtweak.com - Dr Tweak

  9. #9
    Maneater JawZ's Avatar
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    Originally posted by mnosteele52
    You are exactly right again UOD, I guess it pays to fully read something rather than brush right through it - no excuse on my part.
    Yeah...it's like putting pieces of a puzzle together. Sometimes the user doesn't give us the whole picture until we prompt them to do so. In this particular case...I'm beginning to see a trend which is beginning to fit a common cause...and this is what we are after...the root cause.

    ...formerly the omnipotent UOD

  10. #10
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    Estat¡sticas de IP

    Pacotes recebidos = 261774
    Erros de cabe‡alho recebidos = 15438
    Erros de endere‡o recebidos = 3920
    Datagramas encaminhados = 0
    Protocolos desconhecidos recebidos = 0
    Pacotes recebidos descartados = 0
    Pacotes recebidos entregues = 243126
    Solicita‡äes de sa¡da = 261422
    Descartes de roteamento = 0
    Pacotes de sa¡da descartados = 0
    Pacote de sa¡da sem rota = 0
    Reagrupamento requerido = 0
    Reagrupamento bem-sucedido = 0
    Falhas de reagrupamento = 0
    Datagramas fragmentados c/ ˆxito = 0
    Falhas/ fragmenta‡Æo de datagramas = 0
    Fragmentos criados = 0

    Estat¡sticas de ICMP

    Recebidos Enviados
    Mensagens 556 174
    Erros 0 0
    Destino inating¡vel 3 8
    Tempo excedido 1 0
    Problemas de parƒmetro 0 0
    Retardamentos de origem 0 0
    Redirecionamentos 0 0
    Ecos 10 153
    Respostas de eco 127 10
    Datadores 0 0
    Respostas de datadores 0 0
    M_scaras de endere‡o 0 0
    Respostas m_scaras end. 0 0

    Estat¡sticas de TCP

    Abertos ativos = 3185
    Abertos passivos = 3
    Falha em tentativas de conexÆo = 189
    Conexäes redefinidas = 795
    Conexäes atuais = 6
    Segmentos recebidos = 111362
    Segmentos enviados = 116284
    Segmentos retransmitidos = 5927

    Estat¡sticas de UDP

    Datagramas recebidos = 126765
    Nenhuma porta = 4991
    Erros de recebimento = 0
    Datagramas enviados = 139136

    Well, my windows is brazilian, but the order is the same. For you is good, you'll learn a bit of my language =P
    -Packet Loss realy sucks -
    I'm brazilian, so sorry about my bad english

  11. #11
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    You do know uncapping is illegal right? and that if you get caught....well we'll see.
    I don't care. My country is not serious... =(
    -Packet Loss realy sucks -
    I'm brazilian, so sorry about my bad english

  12. #12
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    Heyyyy!!!!

    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) = 1460
    RWIN Scaling (RFC1323) = 0 bits
    Unscaled Receive Window = 1460
    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)
    64240 (MSS x 44)

    bandwidth * delay product:
    Your RcvWindow limits you to: 58.4 kbps (7.3 KBytes/s) @ 200ms
    Your RcvWindow limits you to: 23.36 kbps (2.92 KBytes/s) @ 500ms
    Consider increasing your RWIN value to optimize TCP/IP for broadband.

    MTU Discovery (RFC1191) = ON

    Time to live left = 112 hops
    TTL value is ok.

    Timestamps (RFC1323) = OFF

    Selective Acknowledgements (RFC2018) = ON

    IP type of service field (RFC1349)= 01011100
    Precedence (priority) = 010 (immediate)
    Delay = 1 (low delay)
    Throughput = 1 (high throughput)
    Reliability = 1 (high reliability)
    Cost = 0 (normal cost)




    1 connections tested since 03.10.2001.

    My RcvWindow value is right??? IS TOO SLOW...
    I posted a wrong information, my cable is 256/256, not 256/128...
    sorry, correct the values for me please! Sorry about being so nasty
    -Packet Loss realy sucks -
    I'm brazilian, so sorry about my bad english

  13. #13
    New Member vicoman's Avatar
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    Originally posted by Tio-Fu

    I don't care. My country is not serious... =(

    I wish the US wasn't serious in regards to uncapping

  14. #14
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    I wish the US wasn't serious in regards to uncapping
    Hum, I don't know...
    Yeah, I'm SURE that no one will process my by uncapping.
    But if a car pass by my, probably no one will do anything.
    Last year some guys BURNED an indian ALIVE! Do you believe that?
    And now they are in good jobs because theirs fathers are from the govern, while good working people are starving every day.
    What you think about that?
    -Packet Loss realy sucks -
    I'm brazilian, so sorry about my bad english

  15. #15
    Regular Member jeff8874's Avatar
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    Im not sure I get the analogy. But then again, I can't really understand what the hell your talking about.
    What I said was not meant to be taken seriously. I do not support stealing other peoples bandwidth.
    AMDAthlonXP 1800+
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    WideOpenwest Cable 1500/300

    Pentium 3 1000mghz
    512mb SDRAM
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