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I recently installed Ubuntu 14.04 on a new, clean, Lenovo i5 Skylake Laptop.
The built in wifi adapter doesn't seem to be working. I used an Edimax stick, which was identified instantly, to access the web. Tried updating, upgrading, nada.
lev@PC:~$ lspci -nn | grep -i net
Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15) 02:00.0 Network controller : Qualcomm Atheros Device [168c:0042] (rev 30)01:00.0 Ethernet controller :