Wifi – Access Domain over Wireless

If possible you should try and direct the logs from the AP to a syslog server and possibly discover from them what is going on.

You could also try and use Wireshark to see what is happening to the traffic on your network and see if it is the AP that is isolating the connections or if it is a firewalling issue on the hosts.

You sure can do this. You'll need to put a few things together to do it.

Step 1 Connect and configure a new network segment to your ISA server for the wireless network. (you could use the DMZ but I don't recommend putting DHCP on your DMZ). Link it up to your Netgear AP's.

Step 2 Configure ISA server to allow DHCP Relay. See this article: http://technet.microsoft.com/en-us/library/cc302680.aspx

Step 3 Install Routing and Remote Access and configure DHCP Relay on the ISA server. See this article: http://www.computerperformance.co.uk/w2k3/services/DHCP_Relay_Agent.htm

Step 4 Create a DHCP scope corresponding to your new subnet. What's cool is that your DHCP server will automatically issue an address from the correct subnet because the DHCP Relay Agent tells it which subnet it needs an address from.

This is a fair amount of stuff that all has to work in concert. I recommend three areas to help troubleshoot: 1. Temporarily stop the ISA server service and get it to work that way first 2. Use ISA server monitoring logs 3. Use Microsoft Network Monitor (http://www.microsoft.com/en-us/download/details.aspx?id=4865) or Wireshark (http://www.wireshark.org/download.html). If you're not handy with a packet sniffer, this is the perfect time to start.