I Can see that you use root as login username...
that mean local no radius user ,you need to type cli to get to the junos OS
that could be the problem?
That was definitely the problem.
I created another user account named "admin" with administrator privileges and created a new connection profile that uses the new account instead of the "root" account and it worked perfectly
I can now download running and startup configs from my Juniper devices
Thank you all for your assistance