2522742 - DB2IUPGRADE: ERROR: An error occurred while configuring the instance "db2<sid>"

Running db2iupgrade fails when configuring instance:

ERROR: An error occurred while configuring the instance "db2<sid>"

This occurs even though the pre-upgrade check ( db2ckupgrade ) was successful.

•  In the Db2 Setup log file the following is found:
  
  Existing instances to configure:       
      Instance name:                       db2<sid>
          Instance user information:      
               User name:                   db2<sid>
          Fenced user information:        
               User name:                   db2<sid>
  
  Setting default global profile registry variables :.......Success
  Initializing instance list :.......Success
  
  ERROR: An error occurred while configuring the instance "db2<sid>".
  
  Configuring DB2 instances :.......Failure
  Updating global profile registry :.......Success
  
  
• If the db2iupgrade call was made with -d option ( debug ) the following may be found in the generated .trc file:
  
  30164  |||||||||||||||||||||||/ 4160501536 IServiceFile::validate ENTRY Fri Aug 11 15:14:55 2017 --  ,
  30165  |||||||||||||||||||||||| 4160501536 IServiceFile::validate 3 -DATA-  , STRING = DB2_db2<sid>_1
  30166  |||||||||||||||||||||||| 4160501536 IServiceFile::validate 5 -DATA-  , INT64 = 60001
  30167  ||||||||||||||||||||||||/ 4160501536 IServiceFile::getServiceEntry1 ENTRY Fri Aug 11 15:14:55 2017 --  ,
  30168  ||||||||||||||||||||||||| 4160501536 IServiceFile::getServiceEntry1 20 -DATA-  , STRING = DB2_db2<sid>_1
  30169  |||||||||||||||||||||||||/ 4160501536 iPrepareServicesRecord ENTRY Fri Aug 11 15:14:55 2017 --  ,
  30170  |||||||||||||||||||||||||\ 4160501536 iPrepareServicesRecord EXIT Fri Aug 11 15:14:55 2017 --  , INT = 0
  30171  ||||||||||||||||||||||||\ 4160501536 IServiceFile::getServiceEntry1 EXIT Fri Aug 11 15:14:55 2017 --  , INT = 0
  30172  |||||||||||||||||||||||| 4160501536 IServiceFile::validate 40 -ERROR-  , INT = 60002
  30173  |||||||||||||||||||||||\ 4160501536 IServiceFile::validate EXIT Fri Aug 11 15:14:55 2017 --  , INT = 5119
  30174  ||||||||||||||||||||||| 4160501536 IServiceFile::addService 20 -ERROR-  , INT = 5119

port range , KBA , BC-DB-DB6 , DB2 Universal Database for Unix / NT , Problem