IBM Support

IT48176: PCOM 15.0.3 64BIT PCSCM CRASH AFTER LOST NETWORK CONNECTION

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APAR status

  • Closed as program error.

Error description

  • Telnet 3270 session is configured for auto-reconnect with
AutoReconnectRetries=3 keyword. When the network connection is
lost (unplug Ethernet cable) and then restored and user hits
ENTER several time, the session shows COMM656 error and never
recovers.

Windows Application Event log shows PCSCM crash in
VCRUNTIME140.DLL

Local fix

  • Remove the AutoReconnectRetries keyword from the WS file

Problem summary

  • To recreate the issue, follow these steps:

1. Establish a session connection with "AutoReconnectRetries"
configured.
2. Disconnect the internet by unplugging the Ethernet cable or
disabling Wi-Fi.
3. Press the Enter key - observe the "Busy" status on the OIA
bar.
4. Reconnect to the internet and press Enter multiple times.
5. PComm throws error 656 and fails to recover.
6. If the user disconnects and reconnects the session, it hangs.

Problem conclusion

  • Code changes have been made to prevent reconnection attempts
from leading to an unresponsive state.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IT48176
    • 

  • Reported component name
    PCOMM COMBO-ENG
    • 

  • Reported component ID
    5639I7000
    • 

  • Reported release
    F00
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2025-06-18
    • 

  • Closed date
    2025-07-29
    • 

  • Last modified date
    2025-07-29
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Fix information


    

  • Fixed component name
    PCOMM COMBO-ENG
    • 

  • Fixed component ID
    5639I7000
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSEQ5Y","label":"Personal Communications"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"F00","Line of Business":{"code":"LOB70","label":"Z TPS"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            29 July 2025
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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