I have a Belkin Wireless. I have a Belkin Wireless G MIMO Router. When it was first installed I

Question

I have a Belkin Wireless G MIMO Router. When it was first installed I could get broadband on my computer & on my laptop. (The router is to get broadband on my laptop). After two or three weeks it became difficult to get broadband on the laptop, and then not at all, and eventually no broadband on the computer either. After a while I tried the Router again, with exactly the same results. Take the Router out of the system, no problems, put it back in, no Broadband.