Can't login to ArcGIS Online from ArcMap

Question

When I attempt to login to ArcGIS online from ArcMap 10.0 (running on Citrix) I get an Unable to connect to ArcGIS online error and the connection test results show:

Proxy Server Test - Failed 
 Reason Unknown.

Download Speed Test - Failed 
 Test site unreachable.

Network Latency Test - Passed 
 Network latency 0 ms.  Rating Excellent

Network Route Test - Passed 
 Network route solved with 1 nodes.

IT folks tell me we don't have a Proxy Server - Any ideas?

BrendaMcLuskie · Answer

In ArcMap when you select File >Sign in> do you get a sign in window or do you get an error?