Control time limit of cached credentials

There are some users on your network which uses laptop. They are configured in AD. They carry the laptop with them, so to some extent the laptop stays on the network for few time. When there are not on the network and when the login in back the login credential does not work. It looks when they are disconnected from the network the login credential are wiped out. I want to remove this thing. Is there some timeout settings which wipe out the information of AD on those system or it is happening on the server side. What should we do know.

I do not think this is some kind of cache expiration issue. I had also noticed the same kind of issue on my network. There are some remote connection where when a system is moved from the network the server no longer recognize the same. If you had enabled password expiration settings on it then you must wipe out that put it on permanent remember. If those things are not expired then user will be able to still login. This can be issue with profile also.