I looked at this yesterday, but did not have any ready answers. I do have a couple of thoughts.
I think a more important question is "why is the computer dropping connection?"
How far it is from the access point? Is there possibly a distance or interference issue? This article
offers a generic look at possible causes of dropped connections.
Given the importance of this computer to your workflow, it might be better to have it on a wired connection, if that is at all feasible.
Are you using the default connection manager?