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Internet connection randomly disconnecting and reconnecting? help!

Discussion in 'Networking' started by kidhnsk, Jul 16, 2011.

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  1. kidhnsk

    kidhnsk Thread Starter

    Joined:
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    Messages:
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    Hello, a couple of months ago my internet (Insight Broadband) began to randomly disconnect and reconnect, and recently it has become more frequent (every 5-10 minutes). I connect to my internet wirelessly through a linksys router. It's not my laptop because our desktop and xbox experience the same frequent disconnects and reconnects. I've tried the dns flush with no success. Ive also changed the wireless channel to 1 to prevent any interference. Also, our linksys router is about 4 years old, which could be the cause, but i'd like to elimate all other possibilities first. And finally, every time i click diagnose connection I receive the error " Your computer appears to be correctly configred, but the device or resource (DNS server) is not responding. And just recently our internet has become very slow (youtube videos taking longer to buffer with many pauses). EDIT: I eliminated the possibility of my router itself being at fault as when I plugged my xbox or laptop or desktop directly into the modem the same frequent disconnects and reconnects occured. Here's a copy of my ipconfig /all:


    Microsoft Windows [Version 6.1.7600]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.

    C:\Users\Patrick>ipconfig/all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Patrickscomputr
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Local Area Connection* 21:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Anchorfree HSS Adapter
    Physical Address. . . . . . . . . : 00-FF-AD-3D-81-8B
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Ethernet adapter Local Area Connection 2:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Intel(R) Centrino(R) WiMAX 6250
    Physical Address. . . . . . . . . : 64-D4-DA-10-00-82
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Intel(R) Centrino(R) Advanced-N 6250 AGN
    Physical Address. . . . . . . . . : 00-23-15-59-B5-7C
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::c8:1587:6910:e50%13(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.102(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Tuesday, July 12, 2011 4:02:39 PM
    Lease Expires . . . . . . . . . . : Wednesday, July 13, 2011 7:59:08 PM
    Default Gateway . . . . . . . . . : 192.168.1.1
    DHCP Server . . . . . . . . . . . : 192.168.1.1
    DHCPv6 IAID . . . . . . . . . . . : 318776085
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-45-B1-C3-88-AE-1D-EC-EA-DA

    DNS Servers . . . . . . . . . . . : 74.128.19.102
    74.128.17.114
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Hamachi:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Hamachi Network Interface
    Physical Address. . . . . . . . . : 7A-79-1B-F3-FB-07
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    IPv4 Address. . . . . . . . . . . : 5.92.28.25(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.0.0.0
    Lease Obtained. . . . . . . . . . : Tuesday, July 12, 2011 4:02:22 PM
    Lease Expires . . . . . . . . . . : Wednesday, July 11, 2012 4:04:29 PM
    Default Gateway . . . . . . . . . :
    DHCP Server . . . . . . . . . . . : 5.0.0.1
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter Local Area Connection* 9:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 13:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft 6to4 Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter 6TO4 Adapter:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft 6to4 Adapter #2
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 24:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft 6to4 Adapter #4
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 23:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft 6to4 Adapter #3
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{AD3D818B-8441-4D2A-AA72-E52380C9D3CB}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{65AA76EE-33F9-41E9-AD06-9705B739D7C9}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Reusable Microsoft 6To4 Adapter:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft 6to4 Adapter #5
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    IPv6 Address. . . . . . . . . . . : 2002:55c:1c19::55c:1c19(Preferred)
    Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter isatap.{06CE5D66-101A-4FDE-A595-35C61C6FCA23}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{7B1BF1CC-20AB-4E58-9560-2309D5F069E6}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    C:\Users\Patrick>

    Also, sometimes when I diagnose the connection I don't get this error but the random disconnects and reconnects still occur. Thanks in advance and sorry for the long read.
    EDIT: for the past couple of days or so i'm no longer getting the first error message about a DNS server, however the disconnects are still occuring as often.
     
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  3. TerryNet

    TerryNet Moderator

    Joined:
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    Terry
    You've narrowed the problem to being between your ISP and the modem, inclusive.

    What is the brand and model of the modem? What LEDs does it have, and in what way do they change when a disconnect occurs?

    Starting at the modem and continuing to where your coax cable connects to Insight's I'd disconnect every connection, look for any obvious corrosion and then reconnect securely. There should only be one (good quality) two-way splitter in the path.
     
  4. kidhnsk

    kidhnsk Thread Starter

    Joined:
    Jul 16, 2011
    Messages:
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    Thanks for the response TerryNet. My modem is an Arris and the model is CM300A. The modems lights are as follows: The ethernet LED is lit and blinking fast, the USB LED is unlit, and the cable, online, power LEDs are all lit and I have never seen them blink besides the cable LED which blinks once ~every other second, and seems pretty constant. During the period of time when I disconnect and reconnect, the lights all stay the same as they were before.

    "Starting at the modem and continuing to where your coax cable connects to Insight's I'd disconnect every connection, look for any obvious corrosion and then reconnect securely. There should only be one (good quality) two-way splitter in the path.". Sorry i'm not very good with this kind of stuff, which cable is the coax cable, the one that isn't an ethernet cord? and what do you mean disconnect every connection?
     
  5. TerryNet

    TerryNet Moderator

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    Yes, it's the "input" to your modem (and TV or DVR or set-top box).

    Hmmm, not very well phrased. But I don't know a good short hand for that procedure. Disconnect the coax cable from the modem. After reconnecting it disconnect that coax cable from whatever the other end connects to. Etc.
     
  6. kidhnsk

    kidhnsk Thread Starter

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    Alright I did what you said and I checked all the cables after unplugging them and im still having the same problem. Also, a couple of weeks ago I decided to call insight for help and a man came and brought us new coax cables and when checking the cables I noticed there is more than one splitter, is this a problem?
     
  7. TerryNet

    TerryNet Moderator

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    TVs can deal with multiple splitters, but for a modem there should be only one splitter in the path, and that one should be only a two-way.
     
  8. kidhnsk

    kidhnsk Thread Starter

    Joined:
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    Messages:
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    Yeah I checked it out, there's only one splitter for the modem, and its new as of a couple weeks ago along with the cables. So does this narrow it down to just me needing a new modem because sometimes when I diagnose my connection I get the "replug/restart modem due to connectivity issues" or something along those lines.
     
  9. TerryNet

    TerryNet Moderator

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    First Name:
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    I think that it is most likely a problem with the modem. But I don't know any other way to determine whether it's the modem or a problem with your ISP.
     
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