Error: Windows cannot connect to the printer. Make sure that you have typed the name correctly, and that the printer is connected to network.
中文: Windows 無法連線到印表機，請確定您輸入正確的名稱，且印表機已連線至網路。
由收集封包來看不到IPP protocol 有往外的封包發出
On Windows Server 2k8, you need to install the ‘Internet Client Printing’ feature to enable using IPP to connect and print to printers on the networks or Internet. And a restart is a must. The 2k8 server is not installed with this feature by default. I found on blr2b05-m1, the feature is installed, but you may have not reboot the server. After I restarted it, IPP can work now.
To enable Internet printing on Windows Srv 2k8, what you need to do is to install ‘Internet Client Printing’ feature and restart the server.