After regenerating wcc.pem/wcc.key and copying them to wcc/data/config folder, running wcc_config to use them gives error "E190657 - The new EEM server is unreachable error"
wcc_config.sh -u ejmcommander -p ejmcommander --eemhostname eem_server_1, eem_server_2 --eemappid WCC0004 --eemcertname $CA_WCC_INSTALL_LOCATION/data/config/wcc.pem --eemcertkey $CA_WCC_INSTALL_LOCATION/data/config/wcc.key --eemadmin EiamAdmin --eempassword EiamAdmin_user_password
Do not pass a directory name containing the wcc.pem and wcc.key files, instead just pass the file names, they will be loaded from $CA_WCC_INSTALL_LOCATION/data/config folder automatically. So the syntax that would work will be like:
wcc_config.sh -u ejmcommander -p ejmcommander --eemhostname eem_server_1, eem_server_2 --eemappid WCC0004 --eemcertname wcc.pem --eemcertkey wcc.key --eemadmin EiamAdmin --eempassword EiamAdmin_user_password