I had an HP 580 for 6 moths, then I moved into a new house with bad internet connection but I had no issues for 2.5 months, then suddenly one day my internet didn't work. When I re-started the computer or turned it off and on it would work. I tried everything, got an extender, connected through my extender hard wired, HP serviced my computer, they found no issues. I got fed up and bought a new computer today. An hour in, I had the same issue. I have a tablet next to me, it never loses connection, but now the new computer goes in and out. My internet toolbar shows full strength all of the time, even when I have no connection. What can be the issue? One HP technician told me since I had a high end model that if it doesn't get a strong connection to the internet it won't work? The last error message I had was proxy issue dns.