Viewing webcam

Hi, I've just experienced this problem with viewing webcam. I get invited to view the cam but I get this message "server busy try again latter". I have been able to view webcam before on this laptop. I've disabled the firewall, thinking that was preventing me from viewing the cam. Still not able to view the cam. I've placed the laptop next to the desktop, The desktop was able to view the cam, the laptop got the "server busy" message. Is there something that is preventing me from viewing on the laptop?