Use the command line: make sure all node agents are stopped and the deployment manager (usually named dmgr) is running and then
(on UNIX or Linux)
bash-3.2# cd <WAS_INSTALL_ROOT>/profiles/Custom01/bin
bash-3.2# ./syncNode.sh <dmgr_server_name_or_IP>
(on Windows)
> syncNode.bat <dmgr_server_name_or_IP>