Dell XPS13 9360, Killer Wireless and wtf is happening with my Internet Connection?

OK, maybe the title of this discussion is not so much explanatory.

CONTEXT

I've bought the new Dell XPS13 - the 9360 model - and I love its design, it's smoothness and so on - but there's a problem with the internet connection which is driving me crazy.
- If I use the Dell XPS13 outside (in my office, in a bar) Internet is working fine
- My home connection is working fine with all of my devices (Xbox, smartphones, old Macbook Air, a sad Asus netbook...)
- If I try to connect the Dell XPS13 on my home network, the connection is a mess. Unstable, slow, unusable.

I thought it was a problem of compatibility between the Killer Wireless chip and my router, so I bought a new AC router. Nothing (but now I have a better connection at home, at least).

I don't understand what the problem might be. Do you have any idea?

And: can I update the driver of the Killer Wireless module directly from the website of Killer (Killer Networking - Killer Suite) or should I wait for the driver to be released on the Dell support website?

from Windows Central Forums http://ift.tt/2fbNz0K
via IFTTT