I am having an issue with the remediation group and troubleshooting URL. Anytime I specify a remediation group or the troubleshooting URL, or both at the same time the IP on the client won’t renew, I get an error; “error occurred while renewing interface Local Area Connection : The object already exists.” I am testing DHCPNAP in a workgroup environment with a 2008 server and a vista client. When i don’t specify the remediation group or troubleshooting URL, NAP works as properly and the client obtains an IP address on with its respective DNS suffix. I went ahead and created a domain and put the NPS and client in the same domain and I still run into the same problem. Any ideas on what I might be doing wrong?