I have restrarted the server and the services has started now.

I connected to the instance.

But when I am trying to open Properties of the instance I am getting the following error:

Failed to retrieve data for this request

Failed to connect to server

A connection was successfully established with the server,

but then an error occured during login process.

(Provider: Shared Memory Provider error: 0-No process is on the other end of the pipe)

I have confirmed that all the protocols are enabled.