Server networking problem

On our server 2003, the server can't ping the router or outside the router, just the workstations.  Also it can't access the Internet.  Workstations can access data on the server and ping the server (and everything else).  Workstations can access Internet.
lgottlieb45Asked:
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Sikhumbuzo NtsadaIT AdministrationCommented:
Does it have the same DNS IP address as the workstations?

Do you have a firewall like ISA? Maybe the rules are blocking it.

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lgottlieb45Author Commented:
The server DNS points to itself first, then the router.  I added a third DNS server, the Comcast DNS server, to see if that would help, but it didn't.  As for the firewall, there's only the one built-in.  I've tried turning that off in the Control Panel.  This all started when I replace the router.
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Slav ZabickiSystem EngineerCommented:
how many nic cards does the server have ?
have you install routing and remote access?
have you check the windows firewall?
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David SpigelmanPresident / CEOCommented:
My guess is that you don't have a default gateway set, or it's set incorrectly. I've seen servers sometimes lose their default gateway settings. I don't know why (and to be honest, I've only seen it with 2008), but it can happen. If it does, the symptoms are exactly what you're describing.
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lgottlieb45Author Commented:
The server has only the NIC that's on the system board.  The router has port forwarding to allow remote access to the server and to 3 workstations.  I haven't further configured routing.  On the server, the default gateway is the router.  In the router, it's the one that Comcast gave me, and it must be right or the workstations wouldn't access the Internet.
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David SpigelmanPresident / CEOCommented:
What you want to be sure of - and maybe you are - is that the Gateway address you have for the workstations (which is working) is the same as the one you have the server pointing to. If you haven't checked that it's right, do.
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Slav ZabickiSystem EngineerCommented:
open cmd on the server
ping something
and / or type ipconfig and copy and pase the resuts here  
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lgottlieb45Author Commented:
Results of ipconfig Results of ping
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Sikhumbuzo NtsadaIT AdministrationCommented:
Can you point the server to the Router as first DNS, then on the command prompt run "nslookpup" then try to resolve google.com.

Let us know.
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Sikhumbuzo NtsadaIT AdministrationCommented:
"nslookup" sorry for the typo.
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Slav ZabickiSystem EngineerCommented:
1. can u ping 216.237.72.66 or from the server?
2 . can u trace the ip from the server? 216.237.72.66

you could go to the server management console to run the dns tab and check dns root hints
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lgottlieb45Author Commented:
Please hold until morning... no longer onsite.
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David SpigelmanPresident / CEOCommented:
Ping by IP address is a good thing to try next. You can also try pinging 8.8.8.8.
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Slav ZabickiSystem EngineerCommented:
I recommend switching to 8.8.8.8 and 8.8.4.4 (google dns servers)
also try to ping and trace any external server
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abolinhasCommented:
192.168.1.1 is the ip of your router ? can you ping that ?
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lgottlieb45Author Commented:
Ok, folks.  Here's the deal.  From the server, I can ping workstations.  I can't ping the router or anything external to the LAN.

While I was troubleshooting on Friday I lost connectivity to the server from the workstations.  I had to scramble to get it back.  Since it's a law/CPA office, the boss made the decision to leave the server alone and order a new one, which is what happened.  After the new one's in place, I may try some other things just for self-edification.  I'll report in if anything happens.  Thanks all...
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lgottlieb45Author Commented:
As mentioned above, we replaced this server as it was deemed old and unreliable.  So we were unable to find out whether any of the suggested solutions worked.
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Windows Server 2003

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