Most Common Configuration
If your device is directly connected to the internet (most home computers are) simply select "No" at this step of activation, fill in your purchase code, and click Next to proceed.
Institutional and corporate networks may limit the exposure of many computers to the internet by having a single device connected to the internet, through which every other device on the network must communicate.
This device known as a proxy server and to access the internet (including Maple activation servers,) other computers will need to know its name, port number, and possibly a username and password to authenticate with it.
If you think your computer might use a proxy server to access the internet, and for the required proxy configuration details, please contact your school or corporation's IT department.