+ 0 Votes RE: DNS setup advice Matthew S 5 years ago Someone with more relevant experience may provide better detail. My take based on past experience would be keep it simple, which means using Win2003 server to the max, and leave your routers to route: - Run DHCP on Win2003 Server (optional but cleaner, and enables dynamic mapping of AD objects, DNS entries (for clients) & IP addresses) - If you leave the Linksys DHCP running, you need to override the DNS server settings in the DHCP settings to point to your Win2003 Server (i.e. DNS set to 192.168.1.2) not your ISP's DNS services. - Set up DNS forwarding on Win2003 to your ISP's DNS servers or utlize a service such as OpenDNS (which I use and beleive is provides superior performance & results). Running DNS on Win2003 server will improve general DNS look-up performance because it will cache DNS look-ups, saving the latency of going out to your ISP's servers every time. Hope this helps. + 0 Votes Don't think the board is the problem... CG IT Updated - 5 years ago here's the deal. workstations on the network must use the W2003 Active Directory domain controller which also has DNS service running on it as their preferred DNS server in TCP/IP settings of their network card. This is for Active Directory login purposes. This is most likely why it takes users a long time to log in. They don't have the correct DNS server listed to find your W2003 domain controller. The problem arises as to how are workstations going to get the information they need to find the AD Domain Controller? [and get to the internet[ Since your router is providing DHCP services, you have to create options in DHCP to provide workstations with DNS information. I believe option 6 is for DNS servers. Another problem is configuring the default gateway. Again, you create an option in DHCP specifying the routers address as the default gateway . Now, I'm not sure if your consumer level Linksys router is capable of having DHCP options. If not, you'll have to resort to turning that off, using your Cisco router for DHCP which I know can have options, or using your W2003 Server as your DHCP server and going that route. + 0 Votes clients must use your DC/DNS server CG IT 5 years ago in their DNS TCP/IP settings. What extension did you use for a domain name eg. .com/.net or a non routable .local? your linksys router is probably the real culprit since you are using 2 routers thus have 2 networks. Since your linksys router is running DHCP, you need to create options in DHCP for the default gateway [linksys router]. I believe the option # is 3. With that, clients now have the information for the default gateway. With DNS, queries not resolved by your DNS server should be forwarded to root hint servers on the internet.