14.04 - All Network in ubuntu 14 have been removed and can't connect to internet

Information about Network

Dears,

As per screenshot , all network in my laptop have been removed suddenly , and I can't connect to internet.

Would you please support !

lspci -nnk | grep 0200 -A2

01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
Subsystem: Lenovo Device [17aa:380b]
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]

Please download these packages on some other computer: http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-image-3.13.0-70-generic_3.13.0-70.113_amd64.deb

http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-headers-3.13.0-70-generic_3.13.0-70.113_amd64.deb

http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-headers-3.13.0-70_3.13.0-70.113_all.deb

http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-image-extra-3.13.0-70-generic_3.13.0-70.113_amd64.deb

Transfer them on a USB key or similar to the desktop of the Ubuntu computer. Now, in a terminal:

sudo dpkg -i ~/Desktop/linux*.deb

Reboot.

Post back any errors or missing dependencies. Once we have networking, we will have additional steps.