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SBS 2003 Premium - No Internet Connectivity - Qwest Modem Issues?

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#1 garmann


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Posted 04 February 2009 - 11:03 AM

OK So i have built 2 small business server 2003 machines for other companies. One from ground up with actual MS Disk. One pre-installed from Dell. This third one is also pre-installed from Dell.

OS: SBS 2003 r2 Premium Edition

Machine: Dell PowerEdge T100 RAID 1 (250gb Drives)

Physical setup: Qwest DSL >Actiontec GT701-WG Modem > Linksys GB NIC > Broadcom NIC > Cisco Systems Linksys SD216 Switch > Workstations

The Actiontec has the wireless disabled, (no need for it). We have a block of 8 static IP's from Qwest, (it's either 1 or 8....can't get only 2....don't get me started....lol). The actiontec has the latest firmware on it.

I'm trying to configure the server to have a static public address on the linksys NIC. Then the Broadcom NIC has a static internal IP and goes out to the switch. I want the server to be the DHCP and the DNS. I have successfully done this on 2 prior SBS 2003 Premium servers.

So on the linksys I configure it to be static IP from Qwest, subnet mask of Qwest techs continue to tell me is which absolutely won't work). Gateway i use the IP of the modem Primary DNS i use (internal IP of the server).

I configure the modem by turning off the DHCP and the NAT.

This should work right? It doesn't

As soon as this configuration is in place i lose connectivity to the internet and the modem. I can no longer access the modem interface and can not get any internet. I am not able to ping the modem IP of and can not ping any URL's

Things i have done (which by now have my head in a whirlwind).

I have used the connection wizard chose "direct broadband" in the public adapter i use the same settings described above and same to with the local adapter as well. I use the standard firewall settings and don't change my email settings and finish the wizard.

This nets me no resolution

I have reset the modem and then configured it in bridge mode, shut the DHCP and NAT off Set my server static IP in the DMZ then on the server configure the public NIC like stated above and then run the connection wizard choosing the "a connection that requires a user name and passowrd (PPPoE)" I put the PPPoE info in and continue the wizard using the DNS provided by Qwest and the gateway as well.

This nets me no resolution

I have tried just changing the config on the public NIC, using the static IP the subnet, using the gateway and DNS from Qwest. Didn't work. I have tried so much that i am not even sure all that i have done. I do know that i always end up in the DHCP mode of the modem so the office can work.

I've searched the net looking for answers and really have not come up with any answers. I think the problem lies in the modem but i get no help or support from Qwest. They simply say they don't support the OS i am using.

Although i have some decent knowledge on server and some schooling on the enterprise version i am not an expert and have trouble wrapping my brain around things like forward lookups and reverse lookups. The DNS appears to be fine to me....looks like it has the addressing it should but i am not positive. I have not changed any of that manually, if i have then it was through the connection wizard.

This server works like a dream when you let the modem be the DHCP server and change the public NIC to obtain IP automatically. But it is not what i want at all. I will ultimately run into hassles with what he wants to do with his server. I also won't be able to remote, nor use OWA or VPN.

I am at wits end and not sure where to turn. I do not have any friends with this knowledge and i have read through the books i have and none deal with configs on modems.

I think i got all the info here....can anyone help? I am in a crunch, my client is an accountant and this is Tax season!

Thanks for any guidance,


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#2 InterestinglyAverage


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Posted 04 February 2009 - 12:28 PM

Gotta love modems with built in routers. Personally, I see two ways to resolve this, one is to put the modem into bridge mode, which would have to be done by your ISP. The other is to leave the modem as a router, and simply create a DMZ for the server, which is the only device that will be behind that modem. However, I take it from your post you need to use two IP addresses. Do you have two seperate computers devices that will be behind the modem/router? Or do you need the win2k3 computer to handle both IPs?

I've searched the net looking for answers and really have not come up with any answers. I think the problem lies in the modem but i get no help or support from Qwest. They simply say they don't support the OS i am using.

This should be easy enough to work around - connect a Windows XP computer behind the modem, and get them to configure the modem such that the computer shows its IP address as your WAN IP. Once this is done, you will be able to simply swap over to the server, and copy the connection settings to the WAN-facing interface.
The only way to learn anything is to question everything.

#3 garmann

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Posted 25 February 2009 - 01:11 AM

OK so i could never get the Qwest modem to work the way i wanted. I advised my client to get Speakeasy DSL and he did. Once the switch was made the config went smooth as silk. The server is exactly the way i want it to be and all is grand!

I don't thin Qwest PPPoA and their modem/routers are good for small business server environments. I am glad this headache is over. I am sure with a lot more time, effort and guidance i could have ultimately gotten the Qwest to work, but it was way too much config and headache and mess to deal with.

Glad it's all over now, bye bye Qwest! :thumbsup:

Thanks for your help InterestinglyAverage

Edited by garmann, 25 February 2009 - 01:12 AM.

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