So one day my wireless internet stopped working on my Dell XPS 15z running windows 7. Ran the troubleshooter everything was fixed...for a few hours. Repeat the troubleshooter and things were fixed again, but only for a limited time. Ran avast! and found nothing. The error messages I kept getting were "default gateway is not available" and/or "problem with wireless adapter or access point"
So i began to check other things. It's not my internet, as plugging in via ethernet works just fine. Not my router, as I would get the same error messages on other wireless router networks. Dell replaced the motherboard just before this because of some other problem, so I'm having them replace it again. They just replaced the wireless card 2 days ago and nothing. It would work again for a few minutes before it would stop. Now today my laptop doesn't even see a wireless card existing.
Thoughts, questions, suggestions? Any help would be appreciated. If you need more info, just ask!