Router help

I am a student living on residence at University. Last week, i tripped over the cord that connects me to the internet. I can see that I bent 2 pins and so my internet will not work. I brought it in to computer services and I need a new motherboard. Looking for a cheaper option, I went out and bought a wireless router. When installing it, found there is something in the system blocking my router. I am not at all tech savy when it comes to computers so hopefully there is an easy way to get around this.
Thanks so much in advance for your help.
Alyssa