New XPS 15 (9550) - WIFI issues

Hi,

I have a new XPS 15 -(9550) - Windows 10 Pro

I am getting issues with the wifi connection dropping intermittently.

I have another two other dell laptops and the wifi connection is rock steady.

I've updated the wifi drivers to the latest on the dell site  Communications_Driver_NYN84_WN32_1.519.0.0_A01.EXE

I have also flashed the bios as per the dell site:

XPS_9550_1.0.7.exe

Finally I have removed the wifi device drivers completely and reinstalled

However my wifi connection still drops. The only way to re-instate is to switch the wifi off on the laptop then back on again.

Please can you help?