In LAN settings, when I click on TCP/IP settings, it is not allowing me to open up.

(Question moved from Introductions to more appropriate topic area in order to get noticed more by the people who can answer the question.)

What OS?

Is this a personal or a company owned computer? Are you getting an Access Denied message? If it is company owned, there is likely a policy that is blocking you from opening the TCP/IP settings.

U don't have the administrator privillege if it's a home computer / laptop log in with administrator then go to control panel /user account & change the account type if you are in a office network then ask to your administrator else ask me again for password breaking