From "man sshd_config"
Specifies whether remote hosts are allowed to connect to ports
forwarded for the client. By default, sshd binds remote port
forwardings to the loopback address. This prevents other remote
hosts from connecting to forwarded ports. GatewayPorts can be
used to specify that sshd should bind remote port forwardings to
the wildcard address, thus allowing remote hosts to connect to
forwarded ports. The argument must be “yes” or “no”. The
default is “no”.
In otherwords delete any references that exist refering to "GatewayPorts" in sshd_config and restart sshd.