I am looking into buying a laptop for school and my boyfriend told me I need a wireless router. We have one now but it's a POS and quits working all the time. So I starting looking at prices for a new one and discovered that prices range from $200-20. How do I know what one to buy? I just need one that will never knock me off, is fast, and that my boyfriend can use for his xbox. Is there anything else that I need it to do? I am really clueless when it comes to this. Could someone please help me? Please keep suggestions budget friendly 
Thanks!
Thanks!