How to connect, through a wireless router, to a subnet, and have the clients join AD domain?

First I'd describe my subnet A:

a AD controller, say, adcontroller.mydomain with IP 192.168.1.3

a DHCP and DNS server, say, dhcpdns.mydomain with IP 192.168.1.10

Now I have a CISCO WRVS4400N wireless router, plug it through WAN port to the switch of subnet A. The router has IP 192.168.1.7 by DHCP of subnet A.

Now I also have several PC/laptops connected to WRVS4400N, and do the following configurations, but I cannot get DHCP IP for these PC/laptops from dhcpdns.mydomain.

disable DHCP in the router

configure the router to have static IP in subnet A, say, 192.168.1.7 as before by DHCP. leave the gateway as empty, fill the dns to be 192.168.1.10 (dhcpdns.mydomain).

So, my questions are:

how to get DHCP IP for these PC/laptops from subnet A, i.e., dhcpdns.mydomain?

how to join these PC/laptops to the AD domain? I see an option in WRVS4400N configuration page, that is domain name. does this mean the router can join the domain also? how to do the authentication?

Many thanks!

Answer

By connecting the WAN port on the wireless router to the switch you've segmented your network (you've created two networks).

What you most likely want to do is to connect the LAN port of the wireless router to the switch. The wireless router will then act like a switch (rather than a router) for the wireless clients. The wireless clients will then get their ip configuration from your DHCP server.

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