I bought a new computer so I wouldn't have problems, but this one has given me headaches from day one.  When I called Dell for support, they wanted to charge me more.  I thought I got a lemon computer, but then I began to research it and realized these Dell computers have a lot of complaints from people experiencing the same thing that I am:  it keeps kicking you offline!  Constantly!  So annoying!  I've researched it and tried several of the suggestions to fix it, but nothing seems to help!  I'm out almost $800 and still have to invest in another computer now.  One that will hopefully work this time!