Solved

Intermittent Client Internet Connection

Posted on 2002-04-05
3
301 Views
Last Modified: 2013-12-23
Hi All,

Does anybody know what would cause an intermittent client internet connection, whilst we know the connection is open and working? [ADSL]

The client loses all IP Packets to the ADSL box.

After a period of 10sec-2 mins the connection returns to that client PC.

Several other machines in the network lose the connection to the ADSL box whilst other machines keep the connection to the ADSL box.

This occurs with Win98/Win2000 Professional Clients.
[It only seems to affect a few key machines]

There are a few machine which can maintain an outgoing connection e.g. Servers/Client Machines which are also
configured in exactly the same way.

All name resolution/internet provider settings are given from DNS/DHCP/WINS automatically.


We are talking about a < 25 machine network.

Regards,

Dan.
0
Comment
Question by:danblake
  • 2
3 Comments
 
LVL 63

Expert Comment

by:SysExpert
ID: 6921523
OK.

1) Get the newest NIC drivers for all machines.

2) Do a windowsupdate from the start button, and get any relevant updates.

3) Cleanup the background and startup programs.
In addition Cleanup the startup stuff. In win98/Win ME/Win XP -  Do a Start - Run - msconfig, startup Tab , or for win95 , NT or win2k,
Download the Startup COP a free pcmag utility from
http://www.zdnet.com/downloads/stories/info/0,,77594,.html
 Run it and it will show you everything that is listed in all the possible startup
                        places, and allow you to disable things one at a time until the problem is eliminated.
 A lot of probelms are caused by excess old baggage - programs that have not been properly  un-installed. Startup Cop will eliminate leftovers and un-wanted programs that you no longer want.
Older Antivirus programs and Norton Utilities have been known to cause problems
try disabling them also !
4) Update or disable antivirus as a test.

0
 
LVL 13

Author Comment

by:danblake
ID: 6932204
1) Believe it or not - no client problems with the machines is it affects several parts of the network.

It's amazing found a great guide on Troubleshooting TCP/IP problems in the Windows XP resouce Kit on Technet.  

After setting a few clients to static IP Addresses we found some interesting info -
This gave rise to a 'Router' command line utility.  We could diagnose 2 routers being present within our network resolving @ 0.0.0.0 [For all unknown traffic destinations].
 1- Outside World Router
 2- Internal Gateway Address

We have removed the 1) Outside World Router address from the DHCP server for all client machines.  This has fixed the  problem for the mo but introduced one other.

The DHCP is now resolving the Gateway for Win 2000 Clients @ Primary Domain Controller Address [Not the correct adress of the gateway] - Unfortunate: but the client PC's still resolve and can keep an internet connection up and download 10Mb files +.

Does removing the outside world router present us with any potential problems as this is the change that has been made ?


Thanks ,

Dan.

0
 
LVL 63

Accepted Solution

by:
SysExpert earned 100 total points
ID: 6932665
See

 http://www.dhcp-handbook.com/dhcp_faq.html

Only push out the absolute minimum.

Also watch the scope - Global vs local scope options.


You should have dhcp pass options 3,6,15,44,46 noramlly.

I hope this helps !

0

Featured Post

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The Need In an Active Directory enviroment, the PDC emulator provide time synchronization for the domain. This is important since Active Directory uses Kerberos for authentication.  By default, if the time difference between systems is off by more …
Are you one of those front-line IT Service Desk staff fielding calls, replying to emails, all-the-while working to resolve end-user technological nightmares? I am! That's why I have put together this brief overview of tools and techniques I use in o…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…

821 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question