Im trying to connect a Jenkins Master (v2.41 on a AWS ami) to a Slave (Microsoft Windows Server 2008 R2 SP1 Datacenter 64-bit on AWS) with no luck

I've read all the tutorials and set all the necessary:

• TCP port for JNLP agents fixed on port opened in both firewalls
• All protocols authorized
• Set "Launch agent via Java Web Start"

But I'm still getting a

{{
java.io.IOException: https://<address>/tcpSlaveAgentListener/ is invalid: 403 Forbidden
at org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver.resolve(JnlpAgentEndpointResolver.java:155)
at hudson.remoting.Engine.innerRun(Engine.java:335)
at hudson.remoting.Engine.run(Engine.java:287)
}}

Even when I set "Allow anonymous read access"

Any known issue, suggestions?

Ps: Specific version of the ami
_
NAME="Amazon Linux AMI"
VERSION="2016.09"
ID="amzn"
ID_LIKE="rhel fedora"
VERSION_ID="2016.09"
PRETTY_NAME="Amazon Linux AMI 2016.09"
ANSI_COLOR="0;33"
CPE_NAME="cpe:/o:amazon:linux:2016.09:ga"
HOME_URL="http://aws.amazon.com/amazon-linux-ami/"
Amazon Linux AMI release 2016.09_