Windows, Operating System, Security, Networking, Malware, Support, Forum, Help Site Check Our Facebook Page!
Notices
General Internet Post questions about other Web browsers and general Internet related questions here.


Register your FREE account to unlock additional features at WindowsBBS.com
   
 
 
LinkBack Thread Tools
Old 22nd September 2009   #1
Senior Member
THREAD STARTER
 
Profile:
Join Date: May 2004
Location: Northern New Mexico
Posts: 311
Computer Experience:
Intermediate
chrisw Reputation Level

Troubleshooting a Bad Internet Connection


For the past few months I've been plagued with sporadic dropped connections (XP/SP2 on Comcast cable, no routers or any fancy connections). I'll go a week with all OK, then get a dozen drops over two days, then three good days, then 3 drops per day for 2 days and then.... Comcast swears the cable/splitters are good, we replaced the Comcast modem twice, replaced the modem>NIC cable, and ran AV/Malware programs several times. In all cases, a simple reset of the modem and a PC restart solves the problem (until the next time).

Is there any way to "prove" that it's a Comcast problem (modem to head end) and not my PC? I can monitor the modem's signal strength; Transmit typically 45-48 dBmV, Receive typically 0.5-1.0 dBmV, altho I've experienced -1.0 or -0.8 at times. Device manager indicates my NIC card is OK, even if the connection is partially down (the crash usually occurs in steps; #1 the connection goes down but the cable icon says it's connected; #2 a PC restart..with no modem reset..then results in the "cable unplugged" balloon). If I try to repair the connection thru the network icon, I get a message to contact my ISP so as to get a network address. My email client, Eudora, leaves messages with the flavor that my ISP hasn't got an IP address for me, or that I can't communicate with my ISP's server. This seems it's maybe a protocol problem, that the handshake between me and Comcast keeps getting cut off (that's why I've been watching signal strength).

If I could just pin this on Comcast, I could make a fuss. They say it's my NIC (it's very inconvenient for me to swap NIC cards, so I'd rather avoid that route if I can). I really doubt it's the NIC, Device Manager has never indicated a problem with NIC (and I guess I'd expect the problem to not be so sporadic if it was NIC)

Any ideas/insights would be greatly appreciated.

chrisw is offline  

 

Register
to remove this ad.
 
 

Old 29th September 2009   #2
WindowsBBS Team Member
 
retiredlearner's Avatar
 
Profile:
Join Date: Jun 2004
Location: New Zealand
Posts: 2,831
Computer Experience:
intermediate
retiredlearner Reputation Levelretiredlearner Reputation Levelretiredlearner Reputation Levelretiredlearner Reputation Levelretiredlearner Reputation Levelretiredlearner Reputation Levelretiredlearner Reputation Levelretiredlearner Reputation Levelretiredlearner Reputation Levelretiredlearner Reputation Levelretiredlearner Reputation Level

My System
Hi chrisw, Have you tried updating the drivers? Neil.

retiredlearner is offline  

Did you find this post helpful? Yes | No
Old 29th September 2009   #3
Senior Member
THREAD STARTER
 
Profile:
Join Date: May 2004
Location: Northern New Mexico
Posts: 311
Computer Experience:
Intermediate
chrisw Reputation Level

Neil...yep, did that too...didn't help. Thnx, Chris

chrisw is offline  

Did you find this post helpful? Yes | No
Old 29th September 2009   #4
Staff
 
TonyT's Avatar
 
Profile:
Join Date: Jan 2002
Location: Fairfax, VA
Posts: 7,806
Computer Experience:
echo $experienced;
TonyT Reputation LevelTonyT Reputation LevelTonyT Reputation LevelTonyT Reputation LevelTonyT Reputation LevelTonyT Reputation LevelTonyT Reputation LevelTonyT Reputation LevelTonyT Reputation LevelTonyT Reputation LevelTonyT Reputation Level

My System
Quote:
Is there any way to "prove" that it's a Comcast problem (modem to head end) and not my PC?
Yes.
Do tracert to various Web sites and copy+paste the results into Notepad and save.

For example, open a command prompt and do:
Code:
tracert www.yahoo.com
The first several hops will be your ISP network. Times above 150 indicate latency and is their problem.

Here's a traceroute I just performed:
Code:
Hop		Hostname			IP		Time 1		Time 2
1		192.168.1.1			192.168.1.1	1.113		1.437
2		10.2.200.1			10.2.200.1	10.712		14.879
3		ip72-219-248-53.dc.dc.cox.net	72.219.248.53	15.283		15.459
4		ip68-100-0-177.dc.dc.cox.net	68.100.0.177	15.086		17.237
5		ashbbbrj01-ae0.0.r2.as.cox.net	68.1.0.220	18.171		18.334
6		ae-6.pat2.dcp.yahoo.com		216.115.102.178	18.947		x
7		as-0.pat2.da3.yahoo.com		216.115.101.155	62.904		63.003
8		as-2.pat1.dax.yahoo.com		216.115.96.60	62.698		x
9		te-8-1.bas-c2.mud.yahoo.com	68.142.193.7	52.821		52.496
10		b1.www.vip.mud.yahoo.com	209.191.93.53	52.058		52.124


Last edited by TonyT; 29th September 2009 at 15:24.
TonyT is offline  

Did you find this post helpful? Yes | No

Having problems with your computer? Does it crash or freeze? Is your pc slow? Our technicians can identify any issues and fix your PC quickly and reliably.

 

THIS THREAD HAS EXPIRED.

Are you having the same problem? Please post a new thread, but first you'll have to join us by Registering (FREE).



Discussion Forums
Operating Systems
Windows 8 Windows 8
Windows 7 Windows 7
Windows Vista Windows Vista
Windows XP Windows XP
Windows Server System Windows Server System
Legacy Windows OS Legacy Windows OS
Internet & Networking
Networking (Hardware & Software) Networking
Internet Explorer Internet Explorer
Microsoft Mail Microsoft Mail
Firefox, Thunderbird & SeaMonkey Firefox, Thunderbird
      & SeaMonkey

Web Applications & Cloud Web Applications & Cloud
General Internet
Security
Malware and Virus Removal Malware and Virus
     Removal

Security and Privacy Security and Privacy

Other
Other PC Software Other PC Software
Test Posts Test Posts
Hardware
PC Hardware PC Hardware
Mobile Devices Mobile Devices
Community
Introductions Introductions
General Discussions General Discussions
Site Comments & Suggestions Site Comments
      & Suggestions

News News @ WindowsBBS

Thread Tools


Find us on Facebook   Web Of Trust Rating

All times are GMT. The time now is 15:06.


Recent Discussions
RDP Port 3389 (0)
Latest MS patch causing BSOD (20)
SSD trim and defrag (2)
OK to change name of port for wirel.. (6)
outlook 2013 overloading with email.. (2)
Google Chrome !Aw SNAP! etc. (5)
Apache Office Download Problem (3)
WHEA Uncorrectable Error advice (1)
Monitor of poor quality (33)
Chosing a replacement SSD (9)
c0000005 error, multiple programs a.. (27)
Ultra Fast Broadband just connected.. (9)
Opening .exe file (5)
Overclocking my CPU advice requeste.. (5)
Can't turn off Adobe Flash popup? (5)
Replacing Old Lotus Organizer (5)
BSoD (46)
DLINK DIR-600L network issue (1)
How pin custom shortcut to StartUp .. (5)
Comp is slow to recognize USB HD? (3)


Donate!
Support Windows BBS!



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO
Copyright 2002 - 2013 WindowsBBS.com. All rights reserved.
FDMA Media LLC
Terms of Use, Legal Information & Privacy Policy
Page generated in 0.07750 seconds with 7 queries