Our university (school) has a limitation that one can only connect to their network using one device per student. It has been put in place because of the poor connectivity here (I'm in South Africa). I have set up my mobile (android) as my connecting device and when I tried to use my laptop on the network by tethering on my mobile I couldn't connect. I'm guessing the IP address is checked and, since the laptop IP is different, it won't let me in. The checking seems to be done via web page (no software needs to be downloaded).
Any idea how I could get the laptop's IP to be the same as the phone? We are instructed to use DHCP and I'm using windows on my laptop.