Operating on a workgroup & domain

I have a laptop using NT Workstation that connects to a domain at work. When I connect to my workgroup at home my laptop cannot become a workgroup member unless I reset the computer ID to log into the workgroup. Once I make that change the laptop nolonger can log into the domain at work unless the administrator resets my account. Is there anyway to make my laptop connect to my home workgroup without changing the domain setting?