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Not sure whats wrong with the network... :(

Discussion in 'Networking' started by apinkpony, Jul 22, 2008.

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  1. apinkpony

    apinkpony Thread Starter

    Joined:
    May 20, 2006
    Messages:
    68
    Something, is wrong with my home network.

    What happens? Every so often (5-10 times per day) our internet will slow to snail pace. So slow that my browsers cannot even load anything. Instead it shows up as though there is no internet at all. Sometimes, there is no internet at all. To fix this, I reset either the modem, or the modem and the router. It usually works.

    What its NOT?! I called Comcast to make sure it wasn't something at there end. They troubleshooted with me, and had me plug one of my computer directly into the modem. It would perfectly.

    Then I tested our router. I have one that I use at college, so I plugged that one in instead. It did nothing to change the problem.

    I tested my wireless connection, and all of the wired connections (between computers and router, and between router and modem). NOTHING will fix the problem!!!

    When the internet gives out on my laptop (Vista) I'll run the diagnosis. Usually it comes back saying there is no problem with the internet, or to reset my wireless router. Obviously this isn't helpful. Sometimes though, it tells me to rest my router (duh) and even less often it will tell me that it cannot find the DNS. I've tried to find more information about this problem, but from what I've read, it basically means it cannot connect to the internet...

    Anyway, this is really frustrating. I don't enjoy resetting my router and modem several times a day.
     
  2. JohnWill

    JohnWill Retired Moderator

    Joined:
    Oct 19, 2002
    Messages:
    106,418
    Please supply the following info, exact make and models of the equipment please.

    What country are you located in.
    Name of your ISP (Internet Service Provider).
    What is the expected Upstream/Downstream speed for your ISP Connection?
    Make and exact model of the broadband modem.
    Make and exact model and hardware version of the router (if a separate unit).
    Model numbers can usually be obtained from the label on the device.
    Connection type, wired or wireless.
    If wireless, encryption used, (none, WEP, WPA, or WPA2)
    Make and model of your computer.
    Version and patch level of Windows on all affected machines, i.e. XP-Home (or XP-Pro), SP1-SP2, Vista, etc.
    The Internet Browser in use, IE, Firefox, Opera, etc.




    Please give an exact description of your problem symptoms, including the exact text of any error messages.

    If you're using a wireless connection, have you tried a direct connection with a cable to see if that changes the symptoms? Have you disabled all encryption on the router to see if you can connect that way?

    If there are other computers on the same network, are they experiencing the same issue, or do they function normally?




    On any affected computer, I'd also like to see this:

    Hold the Windows key and press R, then type CMD to open a command prompt:

    Type the following commands:

    PING 206.190.60.37

    PING yahoo.com

    NBTSTAT -n

    IPCONFIG /ALL

    Right click in the command window and choose Select All, then hit Enter.
    Paste the results in a message here.

    If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.
     
  3. apinkpony

    apinkpony Thread Starter

    Joined:
    May 20, 2006
    Messages:
    68
    Microsoft Windows [Version 6.0.6000]
    Copyright (c) 2006 Microsoft Corporation. All rights reserved.

    C:\Users\Bob>ping 206.190.60.37

    Pinging 206.190.60.37 with 32 bytes of data:

    Reply from 206.190.60.37: bytes=32 time=113ms TTL=47
    Reply from 206.190.60.37: bytes=32 time=107ms TTL=47
    Reply from 206.190.60.37: bytes=32 time=190ms TTL=47
    Reply from 206.190.60.37: bytes=32 time=216ms TTL=47

    Ping statistics for 206.190.60.37:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 107ms, Maximum = 216ms, Average = 156ms

    C:\Users\Bob>ping yahoo.com

    Pinging yahoo.com [206.190.60.37] with 32 bytes of data:

    Reply from 206.190.60.37: bytes=32 time=129ms TTL=47
    Reply from 206.190.60.37: bytes=32 time=157ms TTL=47
    Reply from 206.190.60.37: bytes=32 time=298ms TTL=47
    Reply from 206.190.60.37: bytes=32 time=261ms TTL=47

    Ping statistics for 206.190.60.37:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 129ms, Maximum = 298ms, Average = 211ms

    C:\Users\Bob>nbtstat -n

    Local Area Connection:
    Node IpAddress: [0.0.0.0] Scope Id: []

    No names in cache

    Wireless Network Connection:
    Node IpAddress: [192.168.1.100] Scope Id: []

    NetBIOS Local Name Table

    Name Type Status
    ---------------------------------------------
    LH-C2K2INHHHMQJ<00> UNIQUE Registered
    WORKGROUP <00> GROUP Registered
    WORKGROUP <1E> GROUP Registered
    LH-C2K2INHHHMQJ<20> UNIQUE Registered
    WORKGROUP <1D> UNIQUE Registered
    ..__MSBROWSE__.<01> GROUP Registered

    C:\Users\Bob>ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : LH-C2K2INHHHMQJ
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : hsd1.wa.comcast.net.

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . : hsd1.wa.comcast.net.
    Description . . . . . . . . . . . : Intel(R) PRO/Wireless 3945ABG Network Con
    nection
    Physical Address. . . . . . . . . : 00-1B-77-55-14-95
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::347f:e454:6848:d0b0%9(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.100(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Tuesday, July 22, 2008 1:19:28 PM
    Lease Expires . . . . . . . . . . : Wednesday, July 23, 2008 1:19:26 PM
    Default Gateway . . . . . . . . . : 192.168.1.1
    DHCP Server . . . . . . . . . . . : 192.168.1.1
    DHCPv6 IAID . . . . . . . . . . . : 234888055
    DNS Servers . . . . . . . . . . . : 68.87.69.146
    68.87.85.98
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . : hsd1.wa.comcast.net.
    Description . . . . . . . . . . . : Intel(R) 82566MC Gigabit Network Connecti
    on
    Physical Address. . . . . . . . . : 00-E0-B8-CF-C8-2D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 6:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . : hsd1.wa.comcast.net.
    Description . . . . . . . . . . . : isatap.hsd1.wa.comcast.net.
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 7:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 02-00-54-55-4E-01
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e50:287d:1807:3f57:fe9b(Pref
    erred)
    Link-local IPv6 Address . . . . . : fe80::287d:1807:3f57:fe9b%10(Preferred)
    Default Gateway . . . . . . . . . : ::
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Thats the information from CMD. This computer currently has access to the internet, but it does not always, it is an "affected" computer, but right now the internet is working....


    Here are answers to your questions

    Please supply the following info, exact make and models of the equipment please.

    What country are you located in. I am in the USA
    Name of your ISP (Internet Service Provider). I use Comcast High Speed Internet.
    What is the expected Upstream/Downstream speed for your ISP Connection?
    I don't know, when the Comcast man had me check it, it was around 10MB/S
    Make and exact model of the broadband modem.
    It's an RCA DCM305
    Make and exact model and hardware version of the router (if a separate unit).
    It is a Linksys WRT54G v5.
    Model numbers can usually be obtained from the label on the device.
    Connection type, wired or wireless. This computer is wireless, along with my mom's computer. Our other computer is connected with a cable.
    If wireless, encryption used, (none, WEP, WPA, or WPA2). We're using WPA encryption.
    Make and model of your computer.
    Ok. This computer is a Gateway C-140X, the other two are just home built desktop computers.
    Version and patch level of Windows on all affected machines, i.e. XP-Home (or XP-Pro), SP1-SP2, Vista, etc.
    The two desktops are running Windows XP Home, this laptop is running Vista Home Premium.
    The Internet Browser in use, IE, Firefox, Opera, etc.
    We've use Firefox (this computer running v3, the other 2 are running v2), but we've also used internet explorer to make sure its just not retarded.

    Please give an exact description of your problem symptoms, including the exact text of any error messages.
    The description I gave previously is the best I can give really. There are no error messages.

    If you're using a wireless connection, have you tried a direct connection with a cable to see if that changes the symptoms? Have you disabled all encryption on the router to see if you can connect that way?

    We have one computer connected via a wire, and it has the same exact problems. We've also tried disabling encryption. It does nothing. The only thing that sort of helps is resetting the modem or resetting the modem and router.

    If there are other computers on the same network, are they experiencing the same issue, or do they function normally?

    All computers on this network (three) are having the same problem.s
     
  4. JohnWill

    JohnWill Retired Moderator

    Joined:
    Oct 19, 2002
    Messages:
    106,418
    Since you have tried two routers, and wired and wireless connections exhibit the issue, I have to lay the blame at the doorstep of Comcast and/or the modem, it's the only common element in this picture.
     
  5. TheOnlyGonzo

    TheOnlyGonzo

    Joined:
    Apr 3, 2007
    Messages:
    202
    When you lose connection, do any of the lights on the modem go out? I had a very similar issue only difference was I use Time Warner. It started with a drop about every three days, then increased to about six times a day.
    I had to have the installers come out and they rewired from their connection back to my house. They told me it was due to signal fluctuation was changing so drastically that the modem could not retain connection, thus causing the drop. I would have to go thru the same steps you are talking about (reset modem, reset router, and reboot all devices). I would definitely contact Comcast support and have someone come out and check the signal levels coming into the home.
    Only thing I lucked out on was that it was blamed on the connection coming into my house, so I did not have to pay them to do any repairs.

    Good Luck, and hope this helps.
     
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