To All --
I finally got it working after changing one setting, in the configuration-ARP Tab, I selected "Use Real IP and MAC addresses" and it worked.  I must have changed this setting some time ago and never changed it back.  I would like to thank all for your patience and assistance, great website and forum.

Thanks Again,
Joe

Brian --
I am associated with an AP and I have an IP address.  I fire up Cain and Start the Sniffer and choose the Sniffer tab and Select the + Symbol and select all hosts in my subnet.  It scans but finds nothing.  It should find wireless devices connected to the same subnet, correct?  I try this wired and I have no issues. 

Joe

Chris --
I am trying to do ARP Poisoning via wireless.

Joe

Brian --
Thanks for the info but I am still need some clarification. 

"Once you are on the network wired or wireless you can use all the tools in Cain & Able"

I can associate with an AP but I am not able to use the full functionality of Cain and Able and I was told that this was not possible without purchasing the airPCap adapter and software.  Am I wrong or just doing something incorrectly?  I have no issues using Cain & Able wired but wireless I have no functionality.  Thoughts? Ideas?

"1) Cain & Able can sniff on Ethernet over wireless once you have connected to the AP if it is not encrypted or if you have the WEP/WPA key. To crack the WEP key you need a special WiFi dongle with cain but if you are on the network you sniff just as if your connection is a 10/100 Ethernet connection."

I am a little confused and need some clarification on this.  I thought that you must purchase AirPCap with USB adapter to accomplish this.  Can someone please elaborate on this?

Thanks in Advance.

Joe