same issue here.

windows xp 32 bit on main machine
windows vista ultimate 64 bit on slave machine

vista machine connects to xp machine

everything works smooth but sometimes it looses the connection.
on several days it happens five times an hour
on several days it happens only once within five hours.

both machines and keyclones are working
keypresses are passed on the same machine
but the slave machine only shows the connection to the main machine, not the wow session running on it.

if you try to reconnect to the main machine or change some settings the keyclone windows freezes
and needs to be killed via the task manager. Restarting solves the problem and everything works fine again
until it happens again which can be in 5 mins or 5 hours.

if you need screenshots, more details, just let me know

greetings
beyond-tec