zenoss ERROR boto: 400 Bad Request

Hi All,

I am trying implement ZenoSS core 4.x to monitor AWS EC2 instances. When I try to model the device

013-07-17 17:05:39,744 INFO zen.ZenModeler: Connecting to localhost:8789

2013-07-17 17:05:39,750 INFO zen.ZenModeler: Connected to ZenHub

2013-07-17 17:05:39,905 INFO zen.ZenModeler: Collecting for device monitoruser

2013-07-17 17:05:40,291 INFO zen.ZenModeler: No WMI plugins found for monitoruser

2013-07-17 17:05:40,292 INFO zen.ZenModeler: Python collection device monitoruser

2013-07-17 17:05:40,293 INFO zen.ZenModeler: plugins: aws.EC2

2013-07-17 17:05:40,293 INFO zen.PythonClient: Python client finished collection for monitoruser

2013-07-17 17:05:40,294 INFO zen.ZenModeler: Modeler aws.EC2 processing data for device monitoruser

2013-07-17 17:05:41,791 ERROR boto: 400 Bad Request

2013-07-17 17:05:41,792 ERROR boto: <?xml version="1.0" encoding="UTF-8"?>

http://wiki.zenoss.org/ZenPack:Amazon_Web_Services I have followed the instructions from here.

Please need some help.

Regards

A