Hi guys I'm new to the group. I am an employee with an ISP and am having an issue with a customer. After performing a DNS flush (ipconfig/flushdns) and a 'netsh int ip reset resetlog.txt', the customer now has an IP of 172.16.0.100. I cannot seem to get rid of this or discover the cause. Customer has linksys router, motorola SB5101 cable modem and using Win.xp. I have attempted release/renew to see if I can get proper IP but to no avail. Before performing the above commands customer had legitimate IP of 192.168.1.101. Any suggestions on how to get them back to a 192.x.x.x IP would be greatly appreciated. Thanks in advance.