"Unable to contact your DHCP server" means that no Dhcp server responded to a request for an IP configuration. To begin troubleshooting you need to determine if there is an enabled Dhcp server on the network and the components of the network between the Dhcp server and the computer.
The connect the computer to the Dhcp server with the shortest possible path. Usually this means an ethernet cable between router and computer. If that works then add components one by one until you determine where the blockage/disconnect/defect is.
The connect the computer to the Dhcp server with the shortest possible path. Usually this means an ethernet cable between router and computer. If that works then add components one by one until you determine where the blockage/disconnect/defect is.
