Need help with network setup

when u say "If I remove the router from the picture, things go fine. If I shut down the server, everything else runs at normal speed" what device are you using instead?.im not quite sure if linksys router would effectively handle dhcp and dns.

The Linksys must handle DHCP because it does the NAT'ing for the whole network. So you must turn off DHCP services on the server. The router doesn't do DNS lookups, it forwards the requests to whatever DNS server your ISP is running, so the server shouldn't handle that either. Remember, all of those systems are on the Internet with 1 IP address, the address the Router gets via DHCP from your ISP.

What role is the server in, are you running a 2003 Domain Controller? Is Active Directory installed?

Steve

If you go to Linsys's website you can download the administrative software that's specific to your router, I would recomend using that to asign a static IP address to your router, turn off the protocol you don't need and proceed from there. I myself use a wireless linksys router and experienced a similar problems until I did this and checked the DHCP settings on the 2003 server. Make sure you've identified it as a Doman Controler as well.

Hi

Is the DNS on the workstations setup to look at your server first and then the router?? Make sure that the DNS order in the TCP/IP settings reflects this, and make sure that the second DNS addrss (the router), is also the same as the gateway.

Good luck

The server is an domain controller with Active Directory setup. It's a remote/vpn, dns, file server right now.

There is a switch, so I can do work on the server without the router if I needed to. Getting to internet wasn't possible without the router, so I miswrote that part.

We ran into a similar problem with 2000 Server. Tried to use DC as VPN connection also and internal network tanked when Routing and Remote Access was enabled. Server was multihomed with one NIC to internal network and another to router with multiple static IP addresses. Problem appeared to be coordinating 2 different gateways (1 internal, 1 external) on same server.

We wound up setting up another Win2K server (PC basically with 2K installed) to handle VPN. Problem resolved.

Check response from Blackcurrent. He may be onto something.

Dalton

There's a lot of improvements with the firmware update for these routers. So download and install that either way.

But anyway, I believe you've answered your own question. You just need to disable DHCP services on the server.

Is the gateway set to be the router's LAN IP?

Since its only 4 PCs give them set IP addresses within the range of what the router allows.

Turn off your DNS/DHCP on the router. Let the server manage it. Or vise versa. They are fighting with eachother and passing out 2 ips to each nic on the network. Your best bet, especially if it is a tiny network would be to let the router manage the DHCP and the server handle DNS.

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