I'm having the same problem. I unchecked the "Raised Exceptions" and "User Uncaught Exceptions" in the breakpoints section. So now I don't get an error at all...but the script still isn't running. The script, in its entirety is as follows. I get nothing at all. I AM able to log on to the server in a browser so I know ID and PW are correct and that the server is running.
==== code follows ==================
print("gonna connect to: {0}".format(currSVR))
try:
gis = GIS(currSVR, username=adminID, password=adminPW, verify_cert=False)
print("Successfully logged in as: " + gis.properties.user.username)
except Exception as error:
print("Nope, couldn't connect. {0}".format(error))
==== code end ==================