abhishek ~ $ sudo lshw -C network                                                                           
  *-network DISABLED                                                                                        
       description: Wireless interface                                                                      
       product: RTL8723BE PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlo1
       version: 00
       serial: 68:14:01:23:d3:83
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8723be driverversion=4.4.0-31-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
       resources: irq:17 ioport:4000(size=256) memory:94100000-94103fff
  *-network UNCLAIMED
       description: Ethernet controller
       product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:04:00.0
       version: 0a
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list
       configuration: latency=0
       resources: ioport:3000(size=256) memory:94004000-94004fff memory:94000000-94003fff
abhishek ~ $ ethtool -s eth0
abhishek ~ $ ethtool -s eth0 autoneg off speed 100
Cannot get current device settings: No such device
  not setting speed
  not setting autoneg