I am unable to open my sharepoint site in my local machine with my admin credentials

I am unable to open my sharepoint site in my local machine. I can open my sharepoint central admin site in that local machine. When I am trying to open my sharepoint site in my local machine, it was asking the credentials, I gave my admin credentials, but it was not responding with my admin credentils. It was also the same problem when I used the different credentials.

With my admin credentials I can open my sharepoint site in my external machine (not in local machine). So can you please help me to resolve this issue.

Thanks,
Madhava