How long has your computer been powered on? If you aren't sure how to check this, (In Windows) go to: Control Panel / Network Connections Then open one of your network connections to view the status of it. It will tell you how long the connection has been active. I am at 18 days right now. The longest I have ever left it on without restarting was around 100 days. The longest I have had it turned off in the past 5 or so years has been for a few days at a time when I moved. Other than that I usually power it right back on after restarting, which is 99% of the time only because a software install requires a restart. The other 1% of the time is when Windows freezes on me, which hardly ever happens now.