We are running a Python Selenium script in Windows Chrome, and are now faced with an issue which we cannot resolve.
The script (medium sized) runs to completion only say 1 in 3 times.
Other times, it freezes in the middle, maybe after 10 steps, or 15 steps- after that there is no response whatsoever.
The only clue we got was that there is an error printed out (usually after 10 minutes of waiting) access denied.
After this hanging the only option is to 

Kill the browser or 
Kill the process

We tried --disable-extensions, and having an user-dir etc, but to no avail. 
There is an anti-virus (Symantec) running in the machine, which cannot be disabled (enterprise level security settings).
Has anyone faced this issue?
Is there any solution? Please let me know.
Found that the issue was due to AV. Stopped the anti virus for some time and it is running properly now.
Chrome gets hung randomly - Python Selenium Windows