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Can't ping PC by name in intranet


I am running a SBS 2003, and its network settings are:
* the server connects to an adsl router
* the server's IP:192.168.1.2
* router's IP:192.168.1.1

Client PCs are connected to the server via the rounter, but the default gateway is pointing to server (192.168.1.2)

On the server I've got DNS running as well, but just forward any request to my ISP's DNS, except internal requests.
I've also got ISA running on the server as same time.

Now the problems are:
1. I can't ping server from any client pc by server name. If ping by IP, it has no problem
2. I can't get clients joining to domain, because it can't find domain controller

Please advice...

Thanks

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mrpez1

The clients and server should be using the router as thier default gateway. They'll find the eachother b/c they are on the same subnet.

Probably the router is interfering with traffic getting to the Server. Maybe there is a firewall in place. A cheap workgroup switch will get around that problem. Otherwise, you'll need to change some settings in the Router so it will pass data on the lan side like a switch. What kind of DSL router?
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ASKER

it's a NetConn NB3300. It used to work fine before the ISA got started.
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mrpez1

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You'll also need that switch behind the server.
Be sure to set your client PC's NIC DNS setting to the Server's IP address.
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If I have two NICs but still use the same rounter, would it be possible to make it work?
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I was going to accept mrpez1's comment, but mistakenly picked the one from mbwortham; but points should be awarded correctly, 250 for mrpez1 and 100 for mbwortham.
Thanks all of you!
ChenChen, I am new to Experts Exchange - is there a way I can transfer the points you accidentally gave me to mrpez1?
Don't worry about it. I'm happy.