Lion computers not registering in Windows Server 2008 DNS

New Contributor II

I've discovered that my test Lion machines are not registering in DNS. We are using Server 2008 R2 for our DHCP and DNS servers. All of our Snow Leopard machines have no problem. I saw a thread regarding this topic about a month ago and the solution was a fresh install of Lion. I've tried this without success. The host name appears correct in the DHCP leases but the forward and reverse records do not populate in DNS. Has anyone else run into this issue and if so have you found a solution? All Lion test machines are bound to our AD domain and successfully authenticate against it. No luck in Google so far either?
Zack Still
Sr. Systems Administrator
Castlight Health, Inc.
685 Market Street, Suite 300
San Francisco, CA 94105