We've been having a few problems recently with a wireless connection and our firewall. When our VP comes into the office, his laptop picks up the wireless address 192.168.1.3. I'm happy that he can pick up a wireless connection and get an IP address..... but 192.168.1.3 is the address of the firewall of the company. Our DHCP scope is set at 192.168.1.140 - 192.168.1.240 The only way I can think of why this happens is when he as at home he gets the 192.168.1.3 address from his wireless router, then he brings it in here, the DHCP server sees his laptop as the Gateway, and no Internet traffic goes in and out because of it. I asked him if he shuts down his computer when he brings it back and forth and he said that he does. How is this happening that the wireless connection still keeps that address moving inbetween domains? Is there a solution to this problem? The only ones I can think of are: A. Reconfiguring his wireless router at home to 192.168.2.x B. Giving him a static IP C. Beating my head off of my desk I've talked to 2 consulting companies, and Cisco themselves and no one can figure out why this is happening or how to keep it from happening. Sure I have come up with 2 very simple solutions, but it shouldn't be like this in the first place. My wireless network at home is 192.168.1.x. I have no problems with my laptop, or my iPhone with their addresses and coming into the office. Any ideas? I would really appreciate some help on this.