Error while trying to execute python in knime 3.5 version with keras extension

Hi I'm trying to execute on mac machine this example workflow with path: 04_Analytics/14_Deep_Learning/02_Keras/04_Cats_and_Dogs/02_Train_simple_CNN

So, basically I have installed python 3.5 with all Keras requirements with:

conda create -y -n py35_knime python=3.5 pandas jedi keras

I have also activated that environment. After that I have put the exec path for python 3.5 environment in preferences > KNIME > python, and set as "default".

So, after successfully execute the previous workflow "preprocessing images" I encounter several errors in this one when I execute the first node DL Python Network Creator:

ERROR PythonKernel socket.gaierror: [Errno 8] nodename nor servname provided, or not known ERROR DL Python Network Creator 0:222 Execute failed: Could not start python kernel. Cause: The connection attempt timed out. Please consider increasing the socket timeout using the VM option '-Dknime.python.connecttimeout='.

Any suggestions?.. I'm just trying to execute the workflow in the current state.

I have attached the error_log file.

Thanks in advance.