I need the laptops at my office to have a static IP address for security purposes and identification. However, some employees take their laptops home in the evening. If I have the Wi-Fi configuration set to use a static IP address, how can they have a dynamic IP address at home?. All are using windows 7 . Nearly 10 - 15 person have laptop. Its for using in an office at qatar. Now all are getting internet with dynamic ip.