PLEASE HELP: weird Xbox LIVE lag?

This was happening to the online on my Playstation 3 a while ago. There are multiple things that you can do to fix this problem. First, try pressing the on/off button on the back of your router. Wait for about a minute and turn it back on again. If this doesn't help you can re enter your connection setting on your Xbox.(This often works.) If none of these methods work then it may be time to get a new router. I had my old router for a very long time and it eventually slowed down my connection for my Playstation. Once I got my new router, I got my connection going really fast. If you had your router for more than 2 years, this is what I recommend you do. Hope this helps!