Git issue with connection keep-alive

Hi,
I am experiencing an issue with Git plugin in Jenkins. I have already
posted the issue at the Jenkins mailing list but did not heard much in
the last couple of days, so I thought of posting it here incase
someone can help:

Jenkins mailing list thread -
http://groups.google.com/group/jenkinsci-users/browse_thread/thread/6f9d685d6aef4c49?hl=en

In short, the issue is that when the Git plugin is trying to clone a
repo it's failing but "Tortoise Git" on the same server is able to
successfully able to clone the repo. After some debugging it looks
like the Git calls are different, here's the internal Git call from
Jenkins that's failing:

C:\workspace>git clone http://<server_url>/project.git C:\Projects\
trace: built-in: git 'clone' 'http://<server_url>/project.git' 'C:
\Projects\'
trace: run_command: 'git-remote-http' 'origin' 'http://<server_url>/
project.git'
Cloning into C:\Projects\...
trace: run_command: 'fetch-pack' '--stateless-rpc' '--lock-pack' '--
thin' '--no-progress' 'http://<server_url>/project.git' 'refs/heads/
master' 'refs/heads/m3/master'

Whereas, the tortoise git is just passing the "--progress -v"
parameters and it's successful.

Any ideas why the Git call from Jenkins is dropping the connection?

Thanks