I have a 1700 series router, and when I am out of the office, I am able to access our email server. But when I am in the office and connect to the LAN (where the server is located at) I get an error message "unable to connect to server". We have a one to one nat established for the public ip address pointing to the assinged ip of the server. Is there a way to correct this without having to set up two settings in outlook to access the email server?