Help! Broke my SBS 2003 network :(

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From: Chuck Cheeze (chadcrowell_at_gmail.com)
Date: 11/06/04 

Date: 5 Nov 2004 19:46:11 -0800

OK I have had a 1 NIC install running fine for months. With all the
talk of 2 NIC systems I had to try it, and something broke. I can't
figure out what. Here is my setup:

Comcast Cable Modem (Dynamic IP) -->
Linksys WRT54G Wireless Router -->
a) SBS 2003
b) XP Pro Laptop
c) XP Pro Desktop
d) Linksys RT31P2 Vonage VOIP Router --> Phone & Fax machine

All were working wonderfully with a vanilla install of SBS.

I installed a new NIC, placed the VOIP router behind the modem (for
QOS) and hooked it up this way:

Cable Modem > VOIP Router > SBS2003 > Linksys Router > Clients

Everything worked fine to the server, but none of the clients could
connect to the domain or get web access. VOIP worked and web worked
on the server.

After fooling with it all night I put everything back to the original
configuration, but found the same, internet worked to the server, VOIP
worked, but the clients can't connect.

So here is how I have it now:

Comcast Modem (OK)

Linksys Wireless Router (MAC clone, DHCP off, set as Gateway)
192.168.1.1

1 NIC SBS 2003 192.168.1.20 (IP CONFIG below)
Internet access OK, services running normal.

Windows IP Configuration
   Host Name . . . . . . . . . . . . : zeus
   Primary Dns Suffix . . . . . . . : mydomain.local
   Node Type . . . . . . . . . . . . : Unknown
   IP Routing Enabled. . . . . . . . : Yes
   WINS Proxy Enabled. . . . . . . . : Yes
   DNS Suffix Search List. . . . . . : mydomain.local
Ethernet adapter WAN 192.168.1.20:
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : D-Link DFE-530TX+ PCI Adapter
   Physical Address. . . . . . . . . : 00-50-BA-8B-17-32
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 192.168.1.20
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.1
   DNS Servers . . . . . . . . . . . : 192.168.1.20
   NetBIOS over Tcpip. . . . . . . . : Disabled

Linksys VOIP Router 192.168.15.1 (default IP)
Phone and fax working fine through VOIP. There are no networked items
running through this router.

HP Laptop XP Pro SP2
Windows IP Configuration
   Host Name . . . . . . . . . . . . : athena
   Primary Dns Suffix . . . . . . . :
   Node Type . . . . . . . . . . . . : Broadcast
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : NO
Ethernet adapter Local Area Connection
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : National Semi...
   Physical Address. . . . . . . . . : 00-0B-CD-E8-A8-97
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Autoconfiguration IP Address. . . : 169.254.243.249
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . :

I'll spare you the other client IPConfig for now. Hopefully you guys
can help. I have spend all of the last day playing with this, adding
in settings, changing them. Can't seem to get the clients connected.

Thanks

Chad