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Thread: help with settings

  1. #1
    Junior Member
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    Nov 2006
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    36

    help with settings

    I am new to this so bear with me.

    Advertised speed by ISP Cebridge is High-Speed Internet: 512k - 5 Mbps Download Speeds

    This is the speed test

    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 TCP Receive Window (RWIN) = 17520
    RWIN Scaling (RFC1323) = 0 bits
    Unscaled TCP Receive Window = 17520

    RWIN is a multiple of MSS
    Other RWIN values 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 (Note this is not a speed test):

    Your TCP Window limits you to: 700.8 kbps (87.6 KBytes/s) @ 200ms
    Your TCP Window limits you to: 280.32 kbps (35.04 KBytes/s) @ 500ms
    Consider increasing your RWIN value to optimize TCP/IP for broadband.

    MTU Discovery (RFC1191) = ON

    Time to live left = 118 hops
    TTL value is ok.

    Timestamps (RFC1323) = OFF
    Selective Acknowledgements (RFC2018) = ON

    IP type of service field (RFC1349) = 00000000 (0)

    What do I need to change? I am not sure about the slider bar/
    I set it to optimize in settings? Anything else?
    Thanks for your help and patience.

  2. #2
    Elite Member trogers's Avatar
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    Bangkok, Thailand
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    Use these custom settings with TCP Optmizer:

    General Settings tab:
    Custom settings - check
    Modify All Network Adapters - check
    network adapter selection - your NIC
    MTU - 1500
    TTL - 64
    TCP Receive Window - 128480
    MTU Discovery - Yes
    Black Hole Detect - No
    Selective Acks - Yes
    Max Duplicate ACKs - 2
    TCP 1323 Options:
    Windows Scaling - checked
    Timestamps - uncheck
    Advanced Settings tab:
    Max Connections per Server - 10
    Max Connections per 1.0 Server - 20
    LocalPriority - 5
    Host Priority - 6
    DNSPriority - 7
    NetbtPriority - 8
    Lan Browsing speedup - optimized
    QoS: NonBestEffortLimit - 0
    ToS: DisableUserTOSSetting - 0
    ToS: DefaultTOSValue - 80
    MaxNegativeCacheTtl - 0
    NetFailureCacheTime - 0
    NegativeSOACache Time - 0
    LAN Request Buffer Size - 32768
    Then select "Apply Changes" and reboot to take effect

  3. #3
    Junior Member
    Join Date
    Nov 2006
    Posts
    36
    WOW. Thanks, really faster now. This is incredible.
    My new test results are

    TCP options string = 020405b40103030101010402

    MTU = 1500
    MTU is fully optimized for broadband.

    MSS = 1460
    Maximum useful data in each packet = 1460, which equals MSS.

    Default TCP Receive Window (RWIN) = 128480
    RWIN Scaling (RFC1323) = 1 bits (scale factor of 2)
    Unscaled TCP Receive Window = 64240

    RWIN is a multiple of MSS
    Other RWIN values 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) <-- current value
    64240 (MSS x 44)

    bandwidth * delay product (Note this is not a speed test):

    Your TCP Window limits you to: 5139.2 kbps (642.4 KBytes/s) @ 200ms
    Your TCP Window limits you to: 2055.68 kbps (256.96 KBytes/s) @ 500ms

    MTU Discovery (RFC1191) = ON

    Time to live left = 54 hops
    TTL value is ok.

    Timestamps (RFC1323) = OFF
    Selective Acknowledgements (RFC2018) = ON

    IP type of service field (RFC1349) = 01010000 (80)
    Precedence (priority) = 010 (immediate)
    Delay = 1 (low delay)
    Throughput = 0 (normal throughput)
    Reliability = 0 (normal reliability)
    Cost = 0 (normal cost)
    Check bit = 0 (correct, 8th checking bit must be zero)

    DiffServ (RFC 2474) = AF22 010100 (20) - Assured Forwarding class 2, medium drop precedence (RFC 2597).

    This is unreal how much faster pages open. Any other suggestions?
    Thanks again.

  4. #4
    Elite Member trogers's Avatar
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    Location
    Bangkok, Thailand
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    If your operating system is XP SP2, you can download this patch to increase your half-opened concurrent connections from 10 to 50:

    http://www.lvllord.de/?lang=en&url=downloads

  5. #5
    Junior Member
    Join Date
    Nov 2006
    Posts
    36
    I went to the link you provided. I read a little about the download. I went to start/control panel/admin tools/event viewer/sysyem/ There were over 30 entries with the 4226 code for TCP and all with a yellow caution next to them.

    I downloaded and installed the program and set to 50. I cleared the event viewer/system log. I have checked and now the 4226 codes have no yellow caution flags.

    Thanks for all your help. These changes have made a world of diifference in my computer. I just got a new Dell Laptop Duo Processor and was very disappointed until all your fixes. Again "Thanks".

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