rclient error

Iam using windows 2003 server and installed windows 2000 resource kit whne i run this command from cmd promptwere resource kit is installed,C:\Program Files\Resource Kit\rconsole>
rclient \\server1 /Logon:alo\arai 12345678
were alo is my domain and server1 is my remote server,i get the following error cannot connect to server, server1.Overlapped I/O operation is in Progress.