sometime your computer system get froze or working slowly. your laptop run into problem either hardware issue or software issue your network get into problem or configuration of your network is not valid. routers and switches are not properly configured. your remote desktop licensing is not working properly. your printer is not shared properly. dvr is not working and cctv is not configured. you cannot design the ip address scheme via subnetting or supernetting you have assigned a lab task or class task regarding to network in either case contact me and you will get solution