Microsoft Ax in virtual hard disc Error : The server is unavailable. check your configuration and network connection and try again for

Dear All,

I am very new to Ax ,And being partner of Microsoft we are having Microsoft Ax 2012 R3 Virtual Hard disc.
And I had installed Microsoft Ax R3 Virtual Hard disc in Hyper-v , Installation had gone smoothly .

But after login when I try to Open the MS Ax client . I am getting error as "The server is unavailable. check your configuration and network connection and try again".

Can any one please do let me know what's the issue and how can I solve it