I am using Novell.Directory.Ldap.dll version 2.1.8. I have created a main
class with 2 thread that search users in LDAP server concurrent.

After a few seconds of execution (70-90) i have the next exception:
System.Net.Sockets.SocketException: Only one usage of each socket address
(protocol/network address/port) is normally permitted
at System.Net.Sockets.TcpClient..ctor(String hostname, Int32 port)
at Novell.Directory.Ldap.Connection.connect(String host, Int32 port,
Int32 semaphoreId)

Can anybody help me?