The communications operation did not complete in the acceptable time. The timeout value is configured in the AllocateTimeout attribute in the Communications Definitions (CD) entry.
The intersystem request has not been started, or has been terminated.
Check whether the remote system is available and the connection between the local system and the remote system is working if the connection is using a PPC Gateway server.
Check the value that is specified in the CD entry for the AllocateTimeout attribute, or the Timeout on allocate (in seconds) field if you are using the IBM TXSeries Administration Console or AIX® SMIT. The configuration of the CD entries is described in: