my net connection is through LAN. initially the computers in our area had specific IP addresses set and login was through a PPOE dialer. but now the login is through a web based page instead of a dialer and somehow this requires all computers to have NO IP addresses set (in LAN / TCP/IP settings "Obtain IP Address Automatically" is selected). this prohibits us from connecting computers directly to share files and gaming. as of now we are manually changing the IPs to switch between the net conn and our workgroup, normally 2-3 times a day! is there a way to automate this? like run a script or a bat file which could change the IP from a specific one to "automatic" and reverse?