ubuntu16.04 wifi issue

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Hello everyone,

I recently installed Ubuntu 16.04 on my Jackal robot with Sick LiDAR on in it. I have two SSD one with Ubuntu 14 and nother with ubuntu 16. I have two problem that might be related together in ubuntu 16. 1- When I set the wifi via "wicd-curses" and set it to connect automatically to wifi, after I reboot the jackal, the wifi is not connect automatically and I need to go to "wicd-curses" again and connect it. During the boot time also I get this message: "Failed to start LSB: IPV4 DHCP client with IPv4LL support. see systemctl status dhcpcd. service for details"

2- The second problem is that when I reboot the jackal, the LiDAR is working fine but when I connect it to the wifi, the LIDAR dose not have any output anymore. Any help would be appreciated

Note: This is the output for br0 when I'm not connect and when I connect to the wifi:

administrator@PNW-ECE:/etc$ ifconfig

before connecting to wifi or in ubuntu 14:

br0       Link encap:Ethernet  HWaddr 00:0b:ab:d3:c7:5f  
          inet addr:192.168.1.11  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20b:abff:fed3:c75f/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:159652 errors:0 dropped:0 overruns:0 frame:0
          TX packets:127897 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:320321362 (320.3 MB)  TX bytes:6938525 (6.9 MB)

connecting to wifi.

br0       Link encap:Ethernet  HWaddr 00:0b:ab:d3:c7:5f  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5370 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3880 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:9288341 (9.2 MB)  TX bytes:210553 (210.5 KB)

when I don't connect to Wifi and go to "wicd-curses" The IP address shows under the page is 192.168.1.11. which is same as the br0 IP address in this time the LiDDAR working fine. The LiDAR address is 192.168.1.14.

Iman