Intermittant connection

Intermittant connection - Lompoc, CA
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sychotic @ 31st Oct 06:14AM:
Intermittant connection - Lompoc, CA

1) Your location: Lompoc, CA

2) A description of the problem. Connection goes in and out. Can be every couple seconds to a minute or so between interruptions

3) Is the issue intermittent, constant or does it occur at a specific time of day? Constantly intermittent all day

4) Your modem make, model & firmware version. Name
WebSTAR DPC2100

Hardware Version
v1.1

Software Version
v2.0.1r1142-050302(dpc2100-v201r1142-050302a.p7b.csg)

Receive Power Level
10.2 dBmV

Transmit Power Level
47.0 dBmV

Cable Modem Status
Operational

5) Describe any home networking if applicable. none

6) List any firewall and/or anti-virus software you have installed. Include what version you have. Norton internet security 2009

• What indicator lights does the modem have and the current status of each. PC light is a fast blink. Cable light is solid. send light goes out for seconds at a time. Receive light stays solid more than send. Power light solid.

• Post modem's Signal Levels. ??

• Post modem's Log Entries. ??

• Give a description of the cable & splitters configuration in your home leading to the modem. 2 foot cat 5 cable

Called Comcast about problem and they were unable to fix the problem but said they thought it was a problem with my machine. Did a full scan with Norton and did the stuff recommended in the security forum to make sure my machine wasn't the problem.

Any ideas?

Private info removed. ~sorto'

Mod Note: Security troubleshooting continued here ---> »HJT Log Intermittant internet connection
~sorto'
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beachintech @ 31st Oct 07:34AM:
Re: Intermittant connection

Your modem is online and the signal is within acceptable limits. Forward is a little hot, but you are still ok. I would keep looking at your computer or try a second one if you have one.
--
Tech at the Beach.
I speak for myself, not my employer.
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sychotic @ 31st Oct 08:02AM:
Re: Intermittant connection

I used malwarebytes, spybot and adaware along with my Norton AV to clear an infection of some sort. I don't know what else on my computer could cause this to happen suddenly. It worked fine for months then one day it starts going in and out constantly.

And i am not surprised that the internet is good when it works for the 10 to 90 seconds when it comes on before it goes back to being off for 10 to 90 seconds (numbers are estimates haven't timed it yet)

I don't know what else I can do to check whether it is my PC that is the problem.
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EG @ 31st Oct 10:24AM:
Re: Intermittant connection

Run the HijackThis tool and post the results over in the Security Cleanup Forum. The experts there will advise you further and let you know if your machine is clean.
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lilhurricane @ 2nd Nov 06:04AM:
Re: Intermittant connection

Hi sychotic - we'd be happy to review for you.

Just follow all the steps here carefully:

»Security Cleanup FAQ »Mandatory Steps Before Requesting Assistance
Our FAQ will tell you what programs to run & what logs need to be attached.

..and repost to the »Security Cleanup forum.

operators are standing by ™ ;)

»Security Cleanup FAQ »How to post for assistance
»Posting Rules - Security Cleanup
--
~Safe Hex~ Team Discovery ~ Project Hope ~ Like A Hurricane~
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sychotic @ 5th Nov 06:07AM:
Re: Intermittant connection - Lompoc, CA

Still having the problem but I think I am starting to narrow down the causes.

Number one I get the error media disconnected when i do a IPCONFIG/ALL-RELEASE-RENEW

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

C:\Windows\system32>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : xxxxxx
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : hsd1.ca.comcast.net.

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : hsd1.ca.comcast.net.
Description . . . . . . . . . . . : Killer NIC NDIS EDGE Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 67.000.000.000(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.252.0
Lease Obtained. . . . . . . . . . : Thursday, November 05, 2009 2:45:06 AM
Lease Expires . . . . . . . . . . : Sunday, November 08, 2009 11:13:14 AM
Default Gateway . . . . . . . . . : 67.000.000.000
DHCP Server . . . . . . . . . . . : 68.87.76.13
DNS Servers . . . . . . . . . . . : 68.87.76.182
68.87.78.134
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hsd1.ca.comcast.net.
Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
Physical Address. . . . . . . . . : 00-00-00-00-00-00
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 00-00-00-00-00-00
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

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 isatap.hsd1.ca.comcast.net.:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hsd1.ca.comcast.net.
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{}:

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

C:\Windows\system32>ipconfig/release

Windows IP Configuration

No operation can be performed on Local Area Connection while it has its media di
sconnected.
No operation can be performed on Bluetooth Network Connection while it has its m
edia disconnected.

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :
Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hsd1.ca.comcast.net.

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter isatap.hsd1.ca.comcast.net.:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter isatap.{}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

C:\Windows\system32>ipconfig/renew

Windows IP Configuration

No operation can be performed on Local Area Connection while it has its media di
sconnected.
No operation can be performed on Bluetooth Network Connection while it has its m
edia disconnected.

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : hsd1.ca.comcast.net.
IPv4 Address. . . . . . . . . . . : 67.xxx.xxx.xxx
Subnet Mask . . . . . . . . . . . : 255.255.252.0
Default Gateway . . . . . . . . . : 67.169.156.1

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hsd1.ca.comcast.net.

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter isatap.hsd1.ca.comcast.net.:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hsd1.ca.comcast.net.

Tunnel adapter isatap.{xxxxxxxxxxxx}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter isatap.{xxxxxxxxxxx}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter 6TO4 Adapter:

Connection-specific DNS Suffix . : hsd1.ca.comcast.net.
IPv6 Address. . . . . . . . . . . :
Default Gateway . . . . . . . . . :

Next I try to start the connection troubleshoot wizard when the connection is down. Most of the time I get a DNS server error and others default gateway error. both errors say they cannot connect.

Private info removed per request of OP. ~sorto'
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tshirt @ 5th Nov 07:28AM:
Re: Intermittant connection - Lompoc, CA

said by sychotic :

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : hsd1.ca.comcast.net.
Description . . . . . . . . . . . : Killer NIC NDIS EDGE Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : xx.xxx.xxx.xxx(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.252.0
Lease Obtained. . . . . . . . . . : Thursday, November 05, 2009

The Killer NIC NDIS EDGE Interface shows as connected.

I agree with the advise above
a} ask the Security forum people to walk you through a careful, complete malware scan.
b} kill off and rebuild ALL your network connections. (uninstall and allow rediscovery, reinstall the most current drivers)
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tmpchaos @ 5th Nov 07:35AM:
Re: Intermittant connection - Lompoc, CA

Continued here: »HJT Log Intermittant internet connection
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sortofageek @ 5th Nov 05:36PM:
Re: Intermittant connection - Lompoc, CA

While the security cleanup angle is certainly advisable and the troubleshooting is best done in the topic started in the Security Cleanup Forum, I am going to leave this thread open to allow other troubleshooting ideas should they occur to anyone.

Maybe I missed something, but I know signals can fluctuate. sychotic, is there a possibility this may be happening? Have you tried a different NIC?
--
Join Team Helix * I am praying for these friends .
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sychotic @ 5th Nov 06:24PM:
Re: Intermittant connection - Lompoc, CA

I have 2 nic's on my computer. One is the killer nic that you see on the ipconfig, the other is a nvidia nforce nic which is causing the problem I think. I did some research and it seems slot of people have problems. With nvidia nforce nics and vista/win7. I found some other forums that had a few threads on the issue and some stated that downloading the 15.25 vista 64 bit version of the driver would fix the problem and other said try brand new drivers for win7. I tried both of those fixes and they didn't work right away. I installed and uninstalled these drivers and let windows use it's own drivers and disabled the nic and and the nvidia service pretty much randomly with a handfull of reboots thrown in and got it working. But I think that if I restart again it will go back to not working again like it did the last time. I want try to figure out why it's working before I lose the settings.
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tshirt @ 5th Nov 07:30PM:
Re: Intermittant connection - Lompoc, CA

Open the properties for THAT NIC, carefully record ALL the settings (clear screenshots COULD work..if you can print and read them)
do the same for the "killer"
BTW both nVidia and Killer are ok (but overhyped products) and some models are weak/slow on driver support, you may be better off (temporarily anyway) with the MS apporove (but generic performance) driver.
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sortofageek @ 5th Nov 08:54PM:
Re: Intermittant connection - Lompoc, CA

I built four new identical computers once and they gave me fits with intermittent disconnects. I worked on troubleshooting those for nearly a month, futzing with settings, drivers, cables, etc. and trying to refrain from pulling out hair. It was so frustrating. Finally swapped the NIC in one and no more issues.

As it turns out, my Linksys network equipment did not like the ASUS version of a very popular (at the time) 3com NIC. Somebody else could use those NICs with their Netgear switches/router, but they were a nightmare for me. I guess that's why NIC came to mind for me.
--
Join Team Helix * I am praying for these friends .
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