I'm using HP ProBook with Kubuntu 14.04 but my WiFi keep dropping connection.
I have to reboot laptop to connect WiFi again.
I use this command to fix my WiFi problem and it's working fine.
Anyway my chipset is Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter.echo "options rtl8723be fwlps=N ips=N" | sudo tee /etc/modprobe.d/rtl8723be.conf
This setting can be different depens on your chipset.
To see your chipset, you can use this command.
I hope this can usefull for you to!