Please use the following command to add the mainnet enode manually:


admin.addPeer("enode://83ea11d3431ae10a020b7eac812a93c46ede33ad341484ee0045a086e3941347406a7c1938dde6a62146ed20febe2a92d4b043ae06fcf70a89f9f0b4446793cc@54.153.70.212:22334")