WIRELESS CARD
It"s not the problem of the card> Its the cased that the XPS is built in. My XPS 14 made in the year 2001 was fine at the same table from my router but now the shiny XPS 15 hads an antenna problem. On my 2nd XPS 15 and still no signal Dell is no help, pay 2300.00 for a junk and well built laptop, but no use for me.