I'm running Ubuntu 16.04 on dual-boot with Windows 10. My laptop is a Samsung NP370E4K, Core i5, 1TB, fairly new.
I first installed Linux Mint on it, the wifi was always disconnecting, sometimes would reconnect automatically, sometimes it asks for a password. Someone suggested me to switch to Ubuntu, so I did, and the issue persisted. I've tried many solutions on many topics, but some are just too complicated for a begginer like me and none of them really worked. Whenever I need a stable connection I need to use Windows. I also tried searching for a network driver but couldn't find it for Linux.
Here's the report of
sudo lshw -class network
*-network description: Wireless interface product: QCA9565 / AR9565 Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:01:00.0 logical name: wlp1s0 version: 01 serial: 98:83:89:60:50:07 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=4.4.0-62-generic firmware=N/A ip=192.168.1.28 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn resources: irq:18 memory:f7000000-f707ffff memory:f7080000-f708ffff *-network description: Ethernet interface product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: enp2s0 version: 05 serial: 24:f5:aa:f9:4e:22 size: 10Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:43 ioport:e000(size=256) memory:f0004000-f0004fff memory:f0000000-f0003fff