The other possibility is you are attempting to access from a remote machine, and event_socket listens on loopback by default.

On Jul 25, 2016, at 10:08 AM, Ken Rice <krice@freeswitch.org> wrote:

You most likely have disabled mod_event_socket in your modules.conf.xml, uncomment it or add it back in and restart freeswitch…. If you are running FS in the background, and you don’t have any of the other things like mod_xml_rpc running, that’s the only way to get it loaded
 
From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of k.presler@megafit.su
Sent: Sunday, July 24, 2016 10:21 PM
To: freeswitch-users <freeswitch-users@lists.freeswitch.org>
Subject: [Freeswitch-users] Event_socket down
 
FS is running and working well, but not listening on 8021, so I can't connect to fs_cli, can't do cdr rotate.
I had this issue once. 
The question is: Is there any to connect to FS and set event_socket Up?