it is a domain windows 8.1 computer
local admin was disabled.
more than 3 months, no one was logon
When Windows 8 startup, it showed the network has problem
domain admin cannot logon because of failed network connection
the computer is set to fixed IP, it cannot be ping.
it look like the IP was changed to other network, not sure as it cannot be logon to see
i tried a USB ethernet to see whether it can be assigned a new IP by DHCP but failed.
the computer /LAN port is ok as i plugged harddisk from another same model PC. It works
How can i recover it?