I have been struggling with this issue for long now. And this is the place that I am hopeful to get a reply from ... Why? Coz its brianmadden.com
We have published desktops for all our users in the organization and outside ... We use the XenApp 6.0 with Netscaler to logon. The Citrix servers are running with the required patches (Have not applied Rollup yet) ... MS Patches are all up to date as well. Also, we do not have any policy for any bandwidth restrictions.
Now the network ... We have 2 offices, main one in Australia (with a Ethernet connection upto the DC with <1ms latency). The other one is in India (4Mbps leased line connection with approx 280ms latency).
I would have expected slow copying and processing from our Indian office because of the connection, however, even in the Australian office, when a user tries to browse through a locally mapped client drive, it is pretty slow. Gets even slower while going deeper within the folder and subfolder structure. File copy is painstakingly slow! ... Almost 11-16 KBps ... On top of that, it spends almost 5 minutes on the "Calculating ..." stage ...
We are really running out of options and ideas now. Can someone please help with this
We had a similar problem when windows 7 arrived, and the solution was netsh command. Here the link http://social.technet.microsoft.com/Forums/en/w7itpronetworking/thread/f79b0ff2-9f1b-464c-9664-5595fc3556d2
Also check your duplexing all the way through each circuit, a duplex mismatch could also cause some speed issues.