i have cox cable VPN. i disconnected my router( vonage). connected modem directly to the computer, upload speed 580 and downloadtest speed connection was 3670. after 1 hour speed went down and internet connection is virtually dead. this has been happening for few days. after reseting every thing( restarting the computer, modem , router, ) it picks up the speed and then after a while it just become dead. Very frustrating. no spyware detected on yahoo spyware,spybot, no virus detected through AVAST. .............