Can’t connect Wired Ethernet worked on the live install CD

[Uncledom]

Can’t connect Wired Ethernet

(I can connect by USB wireless dongle as below)
Ip Address:    192.168.1.187
Boradcast Add:  192.168.1.255
Subnet Mask:    255.255.255.0
Default Route:  192.168.1.254
Primary DNS:    192.168.1.254

I am Using help - Network html page on Linux lite site.

Enable Networking is ticked.
I cannot click the wired Ethernet connection as it is grayed out.

I click on Edit connections
Network connections:
Ethernet
    Wired connection 1 
Wi-Fi
      BT etc    connected now

Edit Connections:
I select Editing Wired connection 1 (ipv4 settings)
I select:  Method    Manual  then  Add and input
Address  192.168.1.178
Netmask:  255.255.255.0
Gateway 192.168.1.254
DNS server: 192.168.1.254

I click on save and restart the machine ….the wired network is still greyed out.