Hello drdoof,
Firstly - welcome to
CompuForums. We provide our computer help for free, so we would highly appreciate it if you could help us. You can do this by answering other people's questions, or if you are not so technically-minded, post in our general lounge forum. Alternatively you can purchase a premium membership to help contribute to the rising running costs of this site. If you can't help us then we can't help you.
What sort of router are you using [do you mean modem?], and what make and model is your computer? And are you connecting to your router using wireless or Ethernet?