Install Error

I have problem when I try to install Organizer. Error I get is:

Name: POS2007

The application could not be downloaded because a connection to the network could not be established.
Ensure that you can connect to the network, and try again.

************** Exception Text **************
System.TimeoutException: The application could not be downloaded because a
connection to the network could not be established. Ensure that you can
connect to the network, and try again.
   at Microsoft.VisualStudio.Tools.Applications.Deployment.
ClickOnceAddInDeploymentManager.,

DownloadAddIn(TimeSpan timeout)
   at Microsoft.VisualStudio.Tools.Applications.Deployment.

ClickOnceAddInDeploymentManager.InstallAddIn()

Does anyone has any idea what does this mean and how to fix it?

Update

It looks like my firewall was the problem. Everything worked fine when I turned it off.