If you see the DHCP lookup failed error, your computer is having trouble connecting to your router or modem. Now, this can be caused by several things, including a bad connection, a problem with your DHCP server, or an issue with your DNS settings. You should first try plugging in an Ethernet cable and see if this fixes the problem. If not, check your device's network card settings and ensure they are set up correctly and configured for the right network. You should know you may also want to try resetting your modem/router (power cycling) and see if this fixes the issue.