ERROR awx.main.utils Publish Exception: ZMQError('Operation cannot be accomplished in current state')

Hi,
I am currently testing Ansible Tower using a trial license.

And, I get the following error:

Live events: error connecting to Tower server… in the UI after hovering the mouse pointer over the red dot at the top right section in the interface.

Also I get to see the following error from the /var/log/tower/tower.log file

2016-08-02 05:12:02,616 ERROR awx.main.utils Publish Exception: ZMQError(‘Operation cannot be accomplished in current state’); retry=3
Traceback (most recent call last):
File “/lib/python2.7/site-packages/awx/main/socket.py”, line 136, in publish
File “/var/lib/awx/venv/tower/lib/python2.7/site-packages/zmq/sugar/socket.py”, line 399, in send_json
return self.send(msg, flags)
File “zmq/backend/cython/socket.pyx”, line 574, in zmq.backend.cython.socket.Socket.send (zmq/backend/cython/socket.c:5434)
File “zmq/backend/cython/socket.pyx”, line 621, in zmq.backend.cython.socket.Socket.send (zmq/backend/cython/socket.c:5196)
File “zmq/backend/cython/socket.pyx”, line 181, in zmq.backend.cython.socket._send_copy (zmq/backend/cython/socket.c:2035)
File “zmq/backend/cython/checkrc.pxd”, line 21, in zmq.backend.cython.checkrc._check_rc (zmq/backend/cython/socket.c:6248)
raise ZMQError(errno)
ZMQError: Operation cannot be accomplished in current state

port 8080 has already been opened for this server.

Any idea what could be the issue ?

Regards,

AJV

Update:

The firewall for port 8080 has already been opened.

And, I am not able to view any service that runs on port 8080, which could be the issue.

Regards,
AJV

Hello,
I am experiancing the same issue on Redhat 6.X and Tower version 3.0.4.
There are no hints or leads when I search in Google.

Did you manage to resolve the issue? How did you do it? Any Leads/Clues??