Windows 10: Can't contact my Organisation's Activation Servers and ERROR: 0x8007007B

i had activated my PC to Win 10 pro, But yesterday it deactivated itself. Although i have the Product key it won't allow me to reactivate. Each time I try to reactivate it tells me it is unable to contact my Organisation's Activation Servers and it displays error code 0x8007007B. what should i do?

:)

 

Can't connect to the organisation's activation server

Please help me connect to the organisations activation server. It says: We can't activate Windows on this device because we can't connect to your organisation's server. Make sure that you're connected to your organisation's network and try again. If you
continue having problems with activation, contact your organisation's support person. Error code: 0x8007007B.

I tried to change product key several times but still have the problem

 

Can't connect to the organisation's activation server

Please help me connect to the organisations activation server. It says: We can't activate Windows on this device because we can't connect to your organisation's server. Make sure that you're connected to your organisation's network and try again. If you
continue having problems with activation, contact your organisation's support person. Error code: 0xC004F074.

If you know how to resolve this issue please tell me what I need to do. Thanks.

 

Can't connect to the organisation's activation server

I am using Windows 10 Home. The thing that is reported under activation is: We can't activate Windows on this device because we can't connect to your organisation's server. Make sure that you're connected to your
organisation's network and try again. If you continue having problems with activation, contact your organisation's support person. Error code: 0xC004F074.