RE: Killer wifi XPS 9560/horrible support
No, the problem is, like a Dell tech, you don't read anything someone says and don't care about what they've already tried. It's a known issue for not just Dell devices but pretty much anything Killer touches.
I *did* however just get an email back from Dell after mailing their firstname.lastname@example.org yesterday. They verified that the third tech I spoke to had no clue what he was doing and are now going to replace my card with an Intel one instead of me returning the whole thing, so thanks to Dell for that at least.
My advice for people here - contact sales instead of the tech support apparently if you want to replace defective hardware.