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Thread: Slow download speeds...

  1. #1

    Slow download speeds...

    Ever since I moved to a new apartment I have had horrible download speeds(anywhere from 100 kbps to 3000 kbps -- it's pretty random). This is regardless of whether my computer is connected directly to the modem or goes through a router. The puzzling thing is that my roommate gets download speeds of around 20000 kbps, which is what I used to get at my old home. I haven't changed anything, so I'm stumped as to what's going on here.

    Any clues?


    SpeedGuide.net TCP Analyzer Results
    Tested on: 07.07.2007 02:38
    IP address: 69.137.xxx.xxx

    TCP options string: 020405b40103030301010402
    MSS: 1460
    MTU: 1500
    TCP Window: 513920 (multiple of MSS)
    RWIN Scaling: 3
    Unscaled RWIN : 64240
    Reccomended RWINs: 64240, 128480, 256960, 513920
    BDP limit (200ms): 20557kbps (2570KBytes/s)
    BDP limit (500ms): 8223kbps (1028KBytes/s)
    MTU Discovery: ON
    TTL: 45
    Timestamps: OFF
    SACKs: ON
    IP ToS: 00100000 (32)
    Precedence: 001 (priority)
    Delay: 0 (normal delay)
    Throughput: 0 (normal throughput)
    Reliability: 0 (normal reliability)
    Cost: 0 (normal cost)
    Check bit: 0 (correct)
    DiffServ: CS1 001000 (8) - class 1 (RFC 2474). Similar forwarding behavior to the ToS Precedence field.

  2. #2
    Elite Member trogers's Avatar
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    What speed did you pay your ISP to give you? Who is the ISP?

  3. #3
    Your roomie is hogging all the bandwidth... Get a bandwidth shaping piece of software installed on both computers so you can share bandwidth. Look at www.cfos.com.

  4. #4
    I'm paying for 6 Mbps. And it's not a matter of my roommate hogging the bandwidth; I get the same speed by disconnecting his computer altogether and plugging my computer directly into the modem.

    When the tech was installing the modem, the software was having a very hard time detecting my NIC. Could it just be that my NIC is dying?

    What's weird is that my upload is fine... I'm paying for 384 kbps and getting 1500 kbps. As a matter of fact, my download and upload speeds are about even right now.
    Last edited by Glitchtastic; 07-07-07 at 09:24 AM.

  5. #5
    Elite Member trogers's Avatar
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    Try the following with TCP Optimizer:

    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 - 1
    Host Priority - 1
    DNSPriority - 1
    NetbtPriority - 1
    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

    After reboot, test your speed at this link using the recommended test server:

    http://www.speedtest.net/

  6. #6
    Changed the settings to what you have listed, and this is what I get:


  7. #7
    Posting from my roommate's computer now; this is what he gets:


  8. #8
    Ohh Hell yeah.. Sava700's Avatar
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    Quote Originally Posted by Glitchtastic View Post
    Changed the settings to what you have listed, and this is what I get:

    Sounds like to me you updated something and it changed something. Check to make sure also that firmware for router is updated, reboot it along with modem and then reboot computer. Might also check to see that you are fully updated if your not already with drivers and such.

  9. #9
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    Slow download due to wireless router model? is it true?

    I just had a Timewarner tech here to fix a cable modem issue, her replaced the modem and all OK< except my download speed is 2.5Mb and is supposed to be 6Mb. He said I need a new router. He proved it by connecting my desktop directly to the new modem and I got 6Mb. Is it true, I need to buy a new wireless router now, to get the 6Mb?
    I have a Linksys BFE W11S4

  10. #10
    Elite Member trogers's Avatar
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    Quote Originally Posted by keelyinla View Post
    I just had a Timewarner tech here to fix a cable modem issue, her replaced the modem and all OK< except my download speed is 2.5Mb and is supposed to be 6Mb. He said I need a new router. He proved it by connecting my desktop directly to the new modem and I got 6Mb. Is it true, I need to buy a new wireless router now, to get the 6Mb?
    I have a Linksys BFE W11S4
    Older wireless routers will limit speed to 2-3 mbps. Check out the posts in the Wireless Networking section of our forum for the speedier wireless routers.

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