Hi Fubbin,
Have you noticed if the client laptops are acquiring different ip addresses after they wake up?
Couple of settings that might help:
1. Open Input Director on your Director system and switch to the "Director Preferences" tab
2. Scroll all the way down to the Advanced settings
3. Disable the option "Use cached IP addresses"
4. Change the "Check offline systems availability every" option from never to say "20 secs".
5. You can also set a hotkey here to rescan and update systems availability - might be worth setting one up and trying that as well.
Regs,
Shane.