Windows imaging takes common name after image deploy

Hello

We using Deployment Solution 7.6. We deployed many images earlier as well very smoothly.

Just now we have seen that on client machine image gets deployed successfully booted into production as per task sequence but each and every time it takes common name like ABC-123456.

Whenever we deployed image on any model machines it take by default this name only and because of that boot to production task gets failed.

When we deploy image on virtual machine it will not take common name this happened only Physical machine.

Is there any reason why always it takes common hostname when we deply image.