RE: XPS 9550 not working with TB15 Dock
I have also tried this and other alternatives: with and without internet, with and without my 4K monitor, with and without my external keyword, with and without my external mouse, with and without my printer, and some of these combinatorios. It is very painful! No luck! The combination XPS 15 9550 & TB15 is unstable. My TB15 uses a 240W brick by DELL, which should be the right one to connect my XPS 15. I have being finding these troubles since the beginning, and it is very painful and dissapointing!!!