@footbolvova Can we get a clear and complete shot of the kernel variables?

We need to know much more to be able to help you. The message says the target computer can’t access the nfs share on the fog server.

Is this a new install of fog or did just this one client have this issue?
Is the client on the same IP subnet as the FOG server?
On the fog server linux console, what is the output of showmount -e 127.0.0.1 ?