XP Internet Problem

[al929]

I have a new XP machine that I added to my network. I am able to see the network from the machine. I am able to ping both the firewall and other computers on the network. For some reason the copmputer simply does not connect to the network. Is there some XP setting that I am missing. I have hooked other similar machines to the network with no problem.
Any help in solving this issue will be greatly appreciated.
Alan

 

[BeejCyr]

I am confused (what else is new). You say it can see the network, but it cannot connect to the network. That seems to be a contradiction to me.

Now do you mean you can see other workstations on the network but cannot browse the internet? Try droping to the command prompt and type:
tracert 66.218.71.86

Does that work? If it does, do you see server names or just ip addresses to the right on the listing?
If that worked, try:
tracert

http://www.yahoo.com

Does that work? If not, then you have a DNS configuration problem.

 

[al929]

You have it right when you say that I can see other workstations and not browse the internet.
I tryed
tracert 66.218.71.86
I was told that the operations were timed out.
I checked the DNS configuration and it was the same as it is on the other computers on the network.
Any other ideas on how to rectify the problem.
Thanks in advance.

 

[BeejCyr]

Ok, you can ping other workstations but not out on the internet. That sounds like a default gateway problem.
You also mentioned a firewall, if your default gateway is set the same as the other workstations, then check the firewall. Is there a rule to block your IP? Do you need to authenticate to your firewall by logging in first? Does it do NAT (network address translations) for your subnet? If so, is there a limit on how many IP addresses it will NAT?

First, check the default gateway against the other computers.
If that pans out, try turning off one of the other workstations (restarting the firewall) and try getting out on the internet then. If that works then your firewall only supports a limited number of users.
If neither of those two suggestions work, try checking the rules for the firewall to see if there was a rule added accidentally to block the IP address your workstation is using.

Where are you getting the IP address from for this new workstation? Is it DHCPed?

 

[al929]

Thanks for the info.
The default gateway is correct. One of the other things I tryed before I got stuck was to interchange the computer with one that was already able to log onto the internet. (Unpluged the network cable from a working machine and put it into the new machine). This did not work either. Is there some kind on setting in XP that I am missing or4 unable to find.
Thanks again for your help

 

[BeejCyr]

Well the only setting in XP I can think of is the TCP/IP protocol loaded, but it clearly is by your ability to ping other workstations.

This could be an addressing problem. What is your IP address for this machine along with its subnet mask? What is the IP adress and subnet mask on a working workstation? What does yoru routing table look like?

(at the command prompt)
route print

 

[taysys]

I posted an earlier question with a similar problem where I could ping the local network and Internet addresses, but could not use the domain name to find a web site. Also, tracert failed with "no resources."

Can you ping a valid ip address on the Internet?? May be similar to my problem where DNS is failing.

Bob Taylor

 

[al929]

Thanks Bob,
I am unable to ping any thing not on my local network (no internet). If this is a DNS issue where would I start in repairing the problem?
Thanks again,
Alan

 

[BeejCyr]

Alan,
Ping localhost: Check
Ping other workstations on "this" this of the firewall: Check

Ping outside firewall: Fail.

Ok some more questions for you. Are you computers broken up into groups? For example. Here we have one internet gateway/router/firewall. We have 5 locations. They all have thier own set of addresses.
Location 1 192.168.1.0 / 255.255.255.0
Location 2 192.168.2.0 / 255.255.255.0
Location 3 192.168.3.0 / 255.255.255.0
See a pattern forming here. hehehe

Do all of your computers on the same subnet? Are your IP address "private" IPs or are they "real" (assigned by your ISP) static addresses? Does this device you use to get out on the internet do network address translation (NAT or IP Masq)?
Is this firewall you speak of the last hop to the internet? Is it your firewall/router? Or is it a firewall connected to yet another machine or router that is actually on the internet? Is there anything local on your network, that is on the "other side" of the firewall you can use to ping your workstation?