Between the TV’s, laptops, tablets, phones, computers, about 13. Most are connected by WiFi. Kids do NOT logon my domain. My ISP is wireless as my download speed is about 8Mbps. So the router is handling the devices just fine.
For the machines that need domain authentication, you can try to override the DNS server address.
This is the procedure for Windows 7:
1. Go to Network and Sharing Center
2. Click the Change Adapter Settings link
3. Find the Wireless or Ethernet adapter, right click, then select Properties
4. Highlight TCP/IPv4, then click Properties
5. In the Internet Protocol Version 4 (TCP/IPv4) Properties dialog, check “Use the following DNS server addresses”.
6. Enter the IP address of the DC in the Preferred DNS server field.
For parental controls to work, the device must use the router’s DNS service. When DNS requests go through the router, the router forces the controlled device to use the DNS services set up in the router. But for devices that are authenticated by your DC, you must give the DC the first chance for DNS resolution, because the router doesn’t have any knowledge of the domain configuration.
If you configure your browser to use the authenticating proxy, then all traffic initiated from the browser will use the DNS service provided by the proxy. This may be different from the DNS service used by the system, i.e., when you authenticate at login.