2274621 - SUM Internal Server Error (Status 500) - Phase PROFREAD or INSTANCELIST_PRE - NIECONN_BROKEN

You are executing an upgrade or SUM with DMO option using the new SL Commun UI of Software Update Manager (SUM)tool for an ABAP system. In the middle of some phases, Internal Server Error (Status 500) is displayed in the browser unexpectedly.

Issue has been seen coming post dialog completion in the following phases:

'PREP_PRE_CHECK/PROFREAD'

'PREP_INPUT/INSTANCELIST_PRE'

As soon as you enter the values asked in the dialog displayed (Passwords for user DDIC/DB users are entered here) and click 'Next' - Error is displayed.

On checking the Phase logs (PROFREAD.LOG or SAPUpConsole.log), you shall observe only Network connect errors displayed in the logs like below:

1EETQ399 Last error code set is: Error in network interface: NIECONN_BROKEN
Error processing dialog 'Passwords'

*** FATAL ERROR: Error in network interface: NIEINVAL (0/1783 written)
Error processing dialog 'PhaseDecision'

1EETQ399 Last error code set is: Error in network interface: NIEINVAL (0/92 written)

Software Update Manager 1.0

SL Common UI

NIECONN_BROKEN, Internal Server Error, Status 500, SUM, PROFREAD, INSTANCELIST_PRE, SL Common UI, Softwarre Update Manager, ABAP, hostagent, Invalid hex digit(s), Passwords, PhaseDecision, NIEINVAL, SYSTEM , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , BC-CCM-HAG , Host Agent , Problem