Backup fails if replset is exposed

Backup fails with the error:

    create mongo connection: mongo ping: server selection error: server selection
    timeout, current topology: { Type: ReplicaSetNoPrimary, Servers: [{ Addr: 10.83.237.51:27017,
    Type: Unknown, Last error: connection() error occured during connection handshake:
    x509: cannot validate certificate for 10.83.237.51 because it doesn''t contain
    any IP SANs }, { Addr: 10.83.236.120:27017, Type: Unknown, Last error: connection()
    error occured during connection handshake: x509: cannot validate certificate for
    10.83.236.120 because it doesn''t contain any IP SANs }, { Addr: 10.83.229.23:27017,
    Type: Unknown, Last error: connection() error occured during connection handshake:
    x509: cannot validate certificate for 10.83.229.23 because it doesn''t contain
{{    any IP SANs }, ] }}}