Hi, have you found the solution to your question? I am currently searching for a solution myself. I am using this code on a Windows Mobile 6 device, but it doesn't seem to set the IP to the hardcoded one. Instead, it stays 0.0.0.0. Maybe you or someone else can figure this out. Cheers! private NetworkInterface wireless_interface; System.Net.IPAddress ip = System.Net.IPAddress.Parse("192.168.16.1"); if (wireless_interface == null) return; wireless_interface.CurrentIpAddress = ip; wireless_interface.Bind();