The server ends a client session because it has been idle for more minutes than specified in the IDLETIMEOUT parameter in the server options file. The client program will automatically attempt to reconnect to the server when necessary.
Server operation continues.
If the problems persists, increase the value specified for the IDLETIMEOUT parameter in the server options file and restart the server. Many times, the client program is idle while waiting for the user to choose an action to perform (for example, backup, archive, restore, or retrieve files). If a user starts the client program and does not choose an action to perform, the session will eventually time out. The client program automatically reconnects to the server when the user chooses an action that requires server participation. Note that a large number of idle sessions can inadvertently prevent other users from connecting to the server, so care should be used when increasing the IDLETIMEOUT parameter.