A rede Wi-Fi e ethernet parou de funcionar no Ubuntu 14.04

Question

Eu tenho uma versão kudp1 do System76 Kudu Professional, ela veio com o Ubuntu 13.10, mas eu atualizei para o 14.04. Após a última atualização que fiz, parou de detectar redes ethernet e wifi.

Saída

nm-tool :

NetworkManager Tool
State: disconnected

saída do sudo lshw -C network :

*-network UNCLAIMED     
     description: Network controller
     product: Wireless 7260
     vendor: Intel Corporation
     physical id: 0
     bus info: pci@0000:04:00.0
     version: 73
     width: 64 bits
     clock: 33MHz
     capabilities: pm msi pciexpress bus_master cap_list
     configuration: latency=0
     resources: memory:f7d00000-f7d01fff
*-network UNCLAIMED
     description: Ethernet controller
     product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
     vendor: Realtek Semiconductor Co., Ltd.
     physical id: 0.2
     bus info: pci@0000:05:00.2
     version: 0a
     width: 64 bits
     clock: 33MHz
     capabilities: pm msi pciexpress msix vpd bus_master cap_list
     configuration: latency=0
     resources: ioport:e000(size=256) memory:f0004000-f0004fff memory:f0000000-f0003fff

saída iwconfig :

lo        no wireless extensions.

saída nmcli nm :

RUNNING         STATE           WIFI-HARDWARE   WIFI       WWAN-HARDWARE   WWAN      
running         disconnected    enabled         enabled    enabled         enabled

Agradecemos antecipadamente a qualquer um que dê uma olhada neste problema que tenho.