Problem

-- No user can access Integration Engine System Manager

-- The login dialog box displays and user enters login ID then password, but the error shown below displays in a popup:

"Unexpected error occurred during system authorization"

-- this error is thrown in the trace

ERROR :20181004:15.27.03.31:r4edi(tool_toolbox):/var/lib/axway/cijenka/builder3/workspace/b2bi-core-program_Branch2.7-1/2.7-1/b2bi_toolbox/../stdlib/sl_tag.s4m:523:SL_TAG.Get: can't find tag name "port" in file "xxx\local\config\rest\synchrestconfig.cfg"

Resolution

* this error is caused by a concurent access to the file synchrestconfig.cfg in a cluster installation

* open the file synchrestconfig.cfg. The first line should specify the UI port

Ex :
port=6080
timeout=30
restapi.authentication.username=restApiUser
...
...

* if it does not contain the port, stop B2Bi and add the line