MySQL Error reading packet from server: Binary log is not open ( server_errno=1236)

my.cnf

[mysqld]
server-id = 20
auto_increment_offset = 2
auto_increment_increment = 10
master-host = 192.168.9.233 # node A
master-user = root
master-password = mypassword
log-bin=mysql-bin # I solved this problem adding this line

Jesus Cristo Rei do Universo

Eu sou a Luz do mundo. Eu sou a Paz. Eu sou a vida para as suas vidas. Eu sou o Deus do impossível e sou Aquele que pode ajudá-los em tudo.

An existing connection was forcibly closed by the remote host

I had a C# ASP.Net WebService that was giving this error message.
The solution was to turn off HTTP Keep Alive of IIS.