Lately I've had the problem that sometimes I lose browser connectivity - none of my browsers can access the Internet unless I re-boot the modem (Motorola SB5101). If I close the browser and try to re-connect, it just hangs. The modem lights look normal and the network icon in the taskbar looks normal (no red X, blue circle or yellow triangle over it). I can download updates to software, so I know I'm connected, but can't use the browsers unless I do a modem re-boot. When I do this, the modem lights look as if they're cycling normally until it gets to the online light, the that keeps blinking for about thirty seconds, the all the lights go off and it cycles again. Usually on the second try it boots normally. My OS is Windows 7 - 64 bit. What could be going on?