I have been experiencing these internet disconnects since the day I performed upgrade install in my PC (from build 7264 to 7600.....no errors before, during or after the install). I haven't been able to trace the root cause of this. I also did a complete clean install of all the updated network, sound, chipset drivers using driver sweeper. I am using updated modem firmware. This occurs even if I am playing games online or surfing. Even google searching didn't help. I have also unchecked the 'Save power...' option in Network Adapter properties in Device manager. Any other suggestions or has anyone faced this problem & fixed it ?