401 Unauthorized error

Hi

I have AS2 in the landscape. We have both oubtbound and inbound scenarios in the landscape.

http://host:port/AS2/MDN

is our AS2 url.

When I try to open this url, I am getting an error 401 Unauthorzed.

This is the private url and so I should be able to access from my network.

We have a public ip address also for the PO server.

We are not able to send messages to AS2 server. We are getting timeout error.

Any idea

Regards

Harish