We have configured our windows (2003 server) slave launching as services.
When we restart the slave (master keeps running) it is not able to connect to
the master.
With restarting the master the slave is able to connect again.

Error trace in slave log:
Nov 3, 2008 11:30:26 AM hudson.remoting.jnlp.Main$CuiListener <init>
INFO: Hudson agent is running in headless mode.
Nov 3, 2008 11:30:26 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Locating Server
Nov 3, 2008 11:30:26 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to scrat:42682
Nov 3, 2008 11:30:26 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Handshaking
Nov 3, 2008 11:30:26 AM hudson.remoting.jnlp.Main$CuiListener error
SEVERE: unexpected stream termination
java.io.EOFException: unexpected stream termination
at hudson.remoting.Channel.<init>(Channel.java:261)
at hudson.remoting.Channel.<init>(Channel.java:205)
at hudson.remoting.Engine.run(Engine.java:83)