Upload upgrade image to ViPR

Hi all,

I am trying to upload an upgrade image to a ViPR instance using viprcli, but getting the following error when executing the command:

E:\ViPR 1.1>viprcli -hostname ViPR_virtual_ip -cf c:\tmp\rootcookie system upload -imagefile vipr-1.1.0.0.252.img

HTTPSConnectionPool(host='ViPR_virtual_ip', port=4443): Max retries exceeded with url: /upgrade/image/upload

Am I missing something? Can the image be uploaded manually without using viprcli?

Thanks