Change dbms.connector.bolt.listen_address:xx.xx... to precisely:
dbms.connector.bolt.listen_address:7687
And make sure dbms.default_listen_address=0.0.0.0 or
dbms.default_listen_address=localhost is set.
Note, that I ran into the same issue when I accidentally uncommented instead:
dbms.default_advertised_address=localhost.
I had your same issue and this fixed it for me.