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Thread: Assistance in optimizing

  1. #1
    Junior Member
    Join Date
    Oct 2006
    Posts
    1

    Question Assistance in optimizing

    New to forum and wish to have my rig and net optimized by the pro's

    Provider: Cogeco canada
    Advertised up: up to 640 kbps
    Advertised down: 10 mbps
    OS: XP Pro
    SpeedGuide.net TCP/IP Analyzer

    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) = 65535
    RWIN Scaling (RFC1323) = 0 bits
    Unscaled TCP Receive Window = 65535

    Note: TCP 1323 Options need to be enabled for RWIN over 2^16 (65535). Windows 9x might also need the MS Vtcp386 fix.
    For optimum performance, consider changing RWIN to 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: 2621.4 kbps (327.675 KBytes/s) @ 200ms
    Your TCP Window limits you to: 1048.56 kbps (131.07 KBytes/s) @ 500ms

    MTU Discovery (RFC1191) = ON

    Time to live left = 119 hops
    TTL value is ok.

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

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

    Speed test:

    Seattle :

    Download Speed: 4445 kbps (555.6 KB/sec transfer rate)
    Upload Speed: 587 kbps (73.4 KB/sec transfer rate)

    San Fransico:

    Download Speed: 3706 kbps (463.3 KB/sec transfer rate)
    Upload Speed: 585 kbps (73.1 KB/sec transfer rate)

    L.A :

    Download Speed: 3864 kbps (483 KB/sec transfer rate)
    Upload Speed: 580 kbps (72.5 KB/sec transfer rate)

    Dallas:

    Download Speed: 3367 kbps (420.9 KB/sec transfer rate)
    Upload Speed: 564 kbps (70.5 KB/sec transfer rate)

    Chicago:

    Download Speed: 5814 kbps (726.8 KB/sec transfer rate)
    Upload Speed: 588 kbps (73.5 KB/sec transfer rate)

    Atlanta:

    Download Speed: 3320 kbps (415 KB/sec transfer rate)
    Upload Speed: 579 kbps (72.4 KB/sec transfer rate)

    New York:

    Download Speed: 7058 kbps (882.3 KB/sec transfer rate)
    Upload Speed: 577 kbps (72.1 KB/sec transfer rate)

    Washington:

    Download Speed: 7261 kbps (907.6 KB/sec transfer rate)
    Upload Speed: 577 kbps (72.1 KB/sec transfer rate)

    Thanks in advance.

  2. #2
    Dr Tweak mnosteele52's Avatar
    Join Date
    Jul 2001
    Location
    Chesapeake, VA
    Posts
    11,912
    Download the TCP Optimizer and try the following settings.

    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 - 3
    TCP 1323 Options:
    Windows Scaling - uncheck
    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 - 92
    MaxNegativeCacheTtl - 0
    NetFailureCacheTime - 0
    NegativeSOACache Time - 0
    LAN Request Buffer Size - 32768

    Then select "Apply Changes" and reboot to take effect.

    VERY IMPORTANT TO DO THE FOLLOWING:

    1. Under your LAN connection - properties - general tab, uninstall all the protocols there that you do not need. For a stand alone pc all you need is Internet Protocol TCP/IP.

    2. Open IE and select tools - internet options - connections - LAN settings, make sure NOTHING there is checked.

    3. ALWAYS connect your modem via ethernet (NIC) and make sure you have the latest drivers for your NIC from the manufacturer and set your duplex mode to "auto". If you are using a router make sure you have the latest firmware.

    4. Clean out your temporary internet files with CrapCleaner.

    5. Power cycle your modem i.e. unplug it for at least 15 seconds.

    6. Download, update and scan with SpyBot S&D 1.4, Ad-Aware SE 1.06, AVG Anti-Spyware 7.5 & SUPERAntiSpyware to remove any spyware then install and update SpywareBlaster 3.5.1 to stay spyware FREE.

    7. If you aren't currently using a firewall or anti-virus profram then I suggest you install Comodo Firewall and Active Virus Shield - (setup instructions HERE), both are FREE and offer excellent protection.

    8. Do a FREE online virus scan from BitDefender Online Scan and remove all that it finds.

    9. Make sure you have ALL of the latest Windows Updates.

    10. Just an FYI, if you are using Zone Alarm for a firewall it can noticeably drop your speeds.


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