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Certain internet sites slow or can't connect

Posted on 2008-10-09
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Last Modified: 2013-12-14
My home network consists of a cable modem (Comcast is ISP) to an SMC router and is all on Ethernet cabling. The 4 computers all run WinXP SP3 and Norton Internet Security 2008. About two weeks ago we first noticed that it is now either impossible (Windows cannot display &.) or extremely slow trying to access the Monster.com site past their initial home page. Other sites, including those that require a log-in, seem to be OK. At Comcasts suggestion, I rebooted the modem & router without success. I also bypassed the router and connected directly to the modem also without success. Of note, a laptop running Vista with McAfee antivirus was OK on this same network. A Mac with OSX did not work (was sloooow!). I took one of my machines (XP SP3 & Norton) to a neighbors running on Comcast cable, plugged it into that network and it was fine. Using my XP machine, the Vista laptop or the Mac laptop on a borrowed neighbors wireless network also all worked fine.
      I cannot logically find the common problem. If it is my modem/router, the Vista machine should not work. If it were my XP/Norton settings, why would the Mac also be slow? If it is my XP/Norton, why would they be OK on a wireless connection or another wired network?
Thanks for any ideas.
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Question by:kzoller
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19 Comments
 
LVL 10

Expert Comment

by:Casey Herman
ID: 22679866
Run this on each machine... Sounds like your DNS cache has some stale data.  

ipconfig /flushdns
ipconfig /registerdns
Also check your forwarders and that they are pointing to the ISP's DNS servers.

Casey
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Expert Comment

by:Casey Herman
ID: 22679874
Do you have one of the servers handling DNs for the entire network?

Casey
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Author Comment

by:kzoller
ID: 22681828
I have a simple home network with 4 computers cnnected via a router. There is no designated central server machine. The problem also occured with a Mac plugged into the router, but not with a Vista machine.
Ken
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Assisted Solution

by:powercram
powercram earned 150 total points
ID: 22771648
Could be your cable modem.  Can you try your neighbor's at your house?
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Author Comment

by:kzoller
ID: 22778219
I would try that (although it involves dealing with my cable provider- Comcast - who already tried reprogramming the cable modem) but does not explain why my Vista machine is able to work OK with the same modem???.  
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Expert Comment

by:gecko_au2003
ID: 22821960
see if your ISP will send you a new modem out and see if you still have the same issue , if so then call them and arrange for an engineer to check it out.

I would also go with a linksys or netgear or airport extreme router as am not too keen on an smc router although you did say you by passed that and were still having the same issues.

Do you use DHCP or is your ip address etc assigned statically ?
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Expert Comment

by:Press2Esc
ID: 22823203
first things firt... from the command prompt, enter "tracert monster.com" and post your results.  If applicable, post results from entering "ping monster.com -n 10 -l 1500"  (note, at the left is a minus lowercase "L" 1500)
1. From the control panel or IE browser, delete your cache and cookies.
(Internet Options [General]; Delete Cookies + Delete Files)- also, under [Security] > Trusted sites + Sites; enter monster.com + OK + Apply+ OK...)...  As mentioned above, enter ipconfig/flushdns & ipconfig/registerdns....
2. Try to access these sites with your Norton firewall (including windows firewall) temperarily turned OFF...  
3. Try and access these sites in Safemode.  (Boot PC while pressing F8 key).

P2E
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Expert Comment

by:gecko_au2003
ID: 22824731
Use  firefox and see if it's the same

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Expert Comment

by:Merete
ID: 22828329
Do you have a phone line filter as well?
From your telephone line you should have a double adapter one for phone filter and one for cable to router.
Check the cables don't have any dirty bits on the end.
Sounds like the router is not functioning right.
So I concur with gecko_au2& send your router back and have them test it.
Test the power cord to the router that can also cause problems with load.

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Author Comment

by:kzoller
ID: 22837538

I ran the tracert and ping with the following results:
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Ken Zoller>
C:\Documents and Settings\Ken Zoller>tracert monster.com

Tracing route to monster.com [63.112.169.1]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.2.1
  2     9 ms     7 ms     8 ms  192.168.2.1
  3     9 ms    11 ms     9 ms  68.85.140.253
  4     8 ms    26 ms     9 ms  po-26-ur01.norwood.ma.boston.comcast.net [68.87.
144.105]
  5     9 ms    10 ms    10 ms  po-25-ar02.needham.ma.boston.comcast.net [68.87.
145.17]
  6    14 ms    14 ms    13 ms  68.85.162.74
  7    16 ms    17 ms    17 ms  te-0-4-0-1-cr01.newyork.ny.ibone.comcast.net [68
.86.90.61]
  8    77 ms    16 ms    17 ms  xe-11-2-0.edge1.NewYork2.Level3.net [4.71.186.9]

  9    17 ms    16 ms    15 ms  ae-2-79.edge1.NewYork1.Level3.net [4.68.16.78]
 10    21 ms    17 ms    33 ms  sprint-level3-te.newyork1.Level3.net [4.68.111.1
58]
 11    17 ms    18 ms    18 ms  sl-gw28-nyc-1-0-0.sprintlink.net [144.232.3.189]

 12    24 ms    23 ms    24 ms  sl-monster-3-0.sprintlink.net [160.81.206.82]
 13    26 ms    27 ms    28 ms  www.ma.monster.com [63.112.169.1]

Trace complete.

C:\Documents and Settings\Ken Zoller>ping monster.com -n 10 -l 1500

Pinging monster.com [63.112.169.1] with 1500 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 63.112.169.1:
    Packets: Sent = 10, Received = 0, Lost = 10 (100% loss),
______________________________
I have the same problem with IE, Firefox and even Safari on a Mac which makes me doubt that all of these computers developed a problem with their individual browsers. Also, if the problem is on these computers, why do they work OK when run on a "borrowed" neighbor's wireless or wired network? The problem must be with the router/modem but then why does my Vista machine work OK? I have again tried bypassing the router and connecting directly to the cable modem and the Monster connection is still extremely slow or does not load pages at all.

I do not have my phone through cable - I have plain old telephone service.


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Expert Comment

by:Merete
ID: 22837725
So is this problem only on the Mac and only this site?
Are you running IE6 or IE7?
Could be the site if that's the case.
Remember to check out XP network diagnostic tool, have you tried that?
Click Start / Help and Support /look down the bottom to> Fixing A Problem link /
Click on Networking Problems  then on the right click on Diagnose network configuration and run automated networking tests.
You can config them.

Using the Network Diagnostics Tool
http://www.microsoft.com/windowsxp/using/networking/expert/russel_diagnostics.mspx

have you scanned for spyware to cover all basis
http://www.hijackthis.de/
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Author Comment

by:kzoller
ID: 23108454
I finally got a new router (wired) and continue to have the same problem. Attempting to reach the monster.com site (or linked sites) is extremely slow or impossible with machines running Windows XP or with a Mac and OSX. A Vista machine is able to connect and run OK. Using any of the machines on a neighbor's wired or wirelss network is fine. To me, this seems to indicate that the problem is somehow in the cable modem (except that again, the Vista machine is OK using it).
Is it possible for the cable modem to be selctively blocking particular sites? According to Comcast, my ISP, they do not block monster.
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Expert Comment

by:Press2Esc
ID: 23124408
Interesting...  the access and DNS is working with the traceroute cmd, but not working with the simular Ping command...  I have worked with this type of problem b4, usually spyware related..
KZ, you did execute the ipconfig/flushdns and ipconfig/registerdns commands before you ran both diag commands from the command line - right??
1. Try and enter the IP address (63.112.169.1) vs the domain name (monster.com) in the browsers address bar..  Are you able to access monster? 
2. If no-go above, try accessing the website via "F8/Safemode with networking" option.
3. If no-go above, enter below at the command prompt (start < run > enter "cmd" > OK):
     netsh int ip set dns "Local" static 4.2.2.2
P2E

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Accepted Solution

by:
kzoller earned 0 total points
ID: 23286207
My problem is finally resolved. After trying all of the above software fixes with no results, I "bit the bullet" and purchased a new Cable modem. After resetting it with Comcast, I am able to access the "slow" sites without problems. A new modem or router would have seemed an obvious answer except that my Vista machine was able to use the old modem OK while my XP and Mac machines could not. I would like to close this question and will definitely award some points to expert Powercram (above comment ID: 22771648) but would still like some explanation about the Vista vs XP/Mac anomaly.
KZ
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Expert Comment

by:Merete
ID: 23287971
Coudl be one of those Vista hidden sniffers, once the router saw Vista's ip address,
 Vista's security descripters prevented other systems form accessing the router.
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Assisted Solution

by:gecko_au2003
gecko_au2003 earned 150 total points
ID: 23289028
not nit picking but I suggested to get a new one and comment ID 22821960 where as powercram suggested borrowing one from your neighbour

Anyway main thing is that you have sorted it out
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Expert Comment

by:gecko_au2003
ID: 23289048
If what Merete is saying about vistas security descriptors are true then if you turned the vista machine completely off would that stop the vistas security descriptors ?
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