To ensure the proper network connection in the system, we do the following three types of checking: --- Check the NIC card --- Check whether we have an IP or not or our gateway is active or not by a ping test ----- Check if the port no or the service is active or not To check the connection go to command prompt and enter the commands >ping localhost then NIC working. >ping 172.29.0.1 then gateway working >ipconfig In computing, ipconfig (internet protocol configuration) is a console application (command line tool) in Microsoft Windows used to control the network connections on windows.It displays all current TCP/IP network configuration values and can modify DHCP and DNS settings. Usually, ipconfig command is used with the command-line switch /all. > ipconfig /all This command shows the various network configurations, MAC address, default gateway and IP addresses of different servers on the ne...