Colocar no JOB do WS insira a chave "security=0", conforme exemplo abaixo:
[JOB_WS_01010101]
TYPE=WEBEX
ENVIRONMENT=P12
INSTANCES=1,1
SIGAWEB=WS
INSTANCENAME=ws
ONSTART=__WSSTART
ONCONNECT=__WSCONNECT
PREPAREIN=01,010101
security=0
Reinicie o serviço e valide se problema persiste.