Some ports  randomly get blocked and the external program is unable to rece

We have configured few ports to send out Idocs using TRFC mechanism. Initially all the ports are working fine and the external program  is able to receive Idocs from all the ports. However after sometime, some ports  randomly get blocked and the external program is unable to receive Idocs from these ports. If the SAP instance is restarted, we see that all ports work fine for a certain period but the same issue appears again after sometime.
This behaviour is observed in case of TRFC calls but not for normal RFC calls.
RFC Connections,partner profiles,ports,distribution model - these all are working fine.
Your help will be appreciated.
Thanks in Advance,
Madhav

Hi,
The host serevr details may be changed. Please check with the respective team for the proper host details.
Check this link. It may help:
Re: Regarding Providing FTP connection from R/3
Regards,
Swarna Munukoti
Edited by: Swarna Munukoti on Oct 16, 2009 8:17 AM

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