Symptoms

Task "Install PA agent on node" fails during Windows node registration in POA:

Last execution output   
system exception, ID 'IDL:omg.org/CORBA/UNKNOWN:1.0'
TAO exception, minor code = 0 (unhandled c++ exception in server side; unspecified errno), completed = MAYBE

Cause

There is inconsistency in the node registry:

in poa.debug.log

osscore : DBG [task:8199878:416173 1:29372:b3612ba0 SharedNodeRegistrator]: [task:XXX uninstall] NoSuchValue: Key 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\AddressBook' does not contain value 'DisplayName'
osscore : DBG [task:8199878:416173 1:29372:b3612ba0 SharedNodeRegistrator]: [task:XXX uninstall] NoSuchValue: Key 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Connection Manager' does not contain value 'DisplayName'

Resolution

Please add needed keys and resubmit the task. Even with applied changes PA Agent installation may fail with same error. In such case it is needed to install PA Agent manually. After agent installation is completed and host will be registered in POA - cancel task to release blocked task in same queue.

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