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Thread: Very, Very Slow Internet Connection at Night

  1. #1
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    Very, Very Slow Internet Connection at Night

    I live in the Boston Area, and I use cable internet, Comcast. During the night, and only the night, my connection gets so slow I think I'm using dial-up. My connection speed is 13405 kbps and 2018kbps download/upload using the speakeasy test. This is during the day, and I will check again during the night, but the slowness at night has been occuring everyday. When I mean at night, I mean after midnight, so very early morning could be said too.

  2. #2
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    « SpeedGuide.net TCP Analyzer Results »
    Tested on: 09.29.2007 12:58
    IP address: 24.63.xxx.xx

    TCP options string: 020405b401010402
    MSS: 1460
    MTU: 1500
    TCP Window: 65535 (NOT multiple of MSS)
    RWIN Scaling: 0
    Unscaled RWIN : 65535
    Reccomended RWINs: 64240, 128480, 256960, 513920
    BDP limit (200ms): 2621kbps (328KBytes/s)
    BDP limit (500ms): 1049kbps (131KBytes/s)
    MTU Discovery: ON
    TTL: 105
    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.

  3. #3
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    TCP/Web100 Network Diagnostic Tool v5.4.12
    click START to begin
    Connected to: nitro.ucsc.edu -- Using IPv4 address
    Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
    checking for firewalls . . . . . . . . . . . . . . . . . . . Done
    running 10s outbound test (client-to-server [C2S]) . . . . . 1.06Mb/s
    running 10s inbound test (server-to-client [S2C]) . . . . . . 3.15Mb/s
    The slowest link in the end-to-end path is a 10 Mbps Ethernet subnet

  4. #4
    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 - 256960
    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

  5. #5
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    is there any reason its that slow at late night and early morning?

  6. #6
    Elite Member trogers's Avatar
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    Quote Originally Posted by Chauboy View Post
    is there any reason its that slow at late night and early morning?
    Possible causes:

    - Maintenance work by your ISP

    - Heavy torrent uploads and downloads by users in your locality.

    - Some electrical device in your home being switched on during this period and affecting the modem.

  7. #7
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    Well... in the early morning in my time I doubt anyone near me is awake and downloading much. Not much electricity is used... and I don't think they do maintenence every day at like 1-3 AM in the morning. I play games and I host, and my connection is horrible and cuases everyone to lag in the early morning...

    Pinging [66.230.207.58] with 40 bytes ->bytes=40 time=51ms TTL=45
    Pinging [66.230.207.58] with 750 bytes ->bytes=750 time=52ms TTL=45
    Pinging [66.230.207.58] with 1125 bytes ->bytes=1125 time=55ms TTL=45
    Pinging [66.230.207.58] with 1312 bytes ->bytes=1312 time=53ms TTL=45
    Pinging [66.230.207.58] with 1406 bytes ->bytes=1406 time=54ms TTL=45
    Pinging [66.230.207.58] with 1453 bytes ->bytes=1453 time=55ms TTL=45
    Pinging [66.230.207.58] with 1476 bytes -> ..fragmented
    Pinging [66.230.207.58] with 1465 bytes ->bytes=1465 time=55ms TTL=45
    Pinging [66.230.207.58] with 1470 bytes ->bytes=1470 time=59ms TTL=45
    Pinging [66.230.207.58] with 1473 bytes -> ..fragmented
    Pinging [66.230.207.58] with 1472 bytes ->bytes=1472 time=55ms TTL=45
    The largest possible non-fragmented packet is 1472 (1500 - 28 ICMP & IP headers).
    You can set your MTU to 1500

  8. #8
    Elite Member trogers's Avatar
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    Best way to find out the source of high ping times is to do tracerts during normal time of the day and during the period you face high lag time and compare the ping times at each hop. Find out where differences lie. If they occur in the first 3 hops, the cause would probably be within your home.

  9. #9
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    Pinging [66.230.207.58] with 40 bytes ->bytes=40 time=51ms TTL=45
    Pinging [66.230.207.58] with 750 bytes ->bytes=750 time=52ms TTL=45
    Pinging [66.230.207.58] with 1125 bytes ->bytes=1125 time=54ms TTL=45
    Pinging [66.230.207.58] with 1312 bytes ->bytes=1312 time=54ms TTL=45
    Pinging [66.230.207.58] with 1406 bytes ->bytes=1406 time=55ms TTL=45
    Pinging [66.230.207.58] with 1453 bytes ->bytes=1453 time=55ms TTL=45
    Pinging [66.230.207.58] with 1476 bytes -> ..fragmented
    Pinging [66.230.207.58] with 1465 bytes ->bytes=1465 time=54ms TTL=45
    Pinging [66.230.207.58] with 1470 bytes ->bytes=1470 time=59ms TTL=45
    Pinging [66.230.207.58] with 1473 bytes -> ..fragmented
    Pinging [66.230.207.58] with 1472 bytes ->bytes=1472 time=55ms TTL=45
    The largest possible non-fragmented packet is 1472 (1500 - 28 ICMP & IP headers).
    You can set your MTU to 1500

    this is during the day
    i am hosting wireless connection... does this have anything to do with my ridiclous slow speeds?

  10. #10
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    I believe thios may also have something to do with my faulty wireless router... i host off the router

  11. #11
    Elite Member trogers's Avatar
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    Quote Originally Posted by Chauboy View Post
    Pinging [66.230.207.58] with 40 bytes ->bytes=40 time=51ms TTL=45
    Pinging [66.230.207.58] with 750 bytes ->bytes=750 time=52ms TTL=45
    Pinging [66.230.207.58] with 1125 bytes ->bytes=1125 time=54ms TTL=45
    Pinging [66.230.207.58] with 1312 bytes ->bytes=1312 time=54ms TTL=45
    Pinging [66.230.207.58] with 1406 bytes ->bytes=1406 time=55ms TTL=45
    Pinging [66.230.207.58] with 1453 bytes ->bytes=1453 time=55ms TTL=45
    Pinging [66.230.207.58] with 1476 bytes -> ..fragmented
    Pinging [66.230.207.58] with 1465 bytes ->bytes=1465 time=54ms TTL=45
    Pinging [66.230.207.58] with 1470 bytes ->bytes=1470 time=59ms TTL=45
    Pinging [66.230.207.58] with 1473 bytes -> ..fragmented
    Pinging [66.230.207.58] with 1472 bytes ->bytes=1472 time=55ms TTL=45
    The largest possible non-fragmented packet is 1472 (1500 - 28 ICMP & IP headers).
    You can set your MTU to 1500

    this is during the day
    i am hosting wireless connection... does this have anything to do with my ridiclous slow speeds?
    This is a ping command, not a tracert.

    To do a tracert, click 'Start' and then 'Run'. Type "cmd" into the box and click 'ok'.

    A DOS black screen will appear. Type after the C:\>

    tracert www.yahoo.com

    and press enter key

    When test is completed, move mouse cursor to the DOS black screen, click right and choose 'select all'.

    Move mouse cursor to the Quick Reply box of this forum, click right and 'paste'.

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