It looks like the ring on pin 2 (white) on the AC3160 is missing, which probably explains why the antenna cable will not snap on. Is by any chance that ring stuck in the antenna connector?
Hi,I just bought AC9260 Wi-Fi card,but somehow the right white cable of my Dell Inspiron 5559 (there are two, black and white) is built different and doesn't fit as the black.Before I tried to replace it I had AC3160 NGW.Now I can see that AC3160 has a different pin (number 2) to be connected to the white cable than number 1 pin. What can I do to solve this? So I will have fast internet soon. I added pictures of both NGW Cards and my laptop cables.Thank in advance   [IMAGE]9260 NGW[IMAGE]3160 NGW[IMAGE]Cables    
AC9260 NGW Wi-Fi Card doesn't fit to Dell laptop cables