If you have a device that you would like to connect to the wireless network on site but cannot enter a username or password through the device, you can use MAC based authentication through Connect.
Connecting Wireless Devices
From the Wi-Fi Manager section:
Choose Additional Devices.
Locate the device's MAC address. Every device will have a MAC address. This is normally printed on the device but may be found in the device's settings. Enter this number and name the device. Click Save to complete the process.
All devices will appear in the table and can be edited or deleted.
Once you've added all the devices needed into this window, and you can see their names and MAC addresses appearing properly, then you just need to go the printer/device itself and connect to the wireless network called "Wi-Fi MAC".
No password will be needed, as the MAC address is effectively the password.
You may get some warnings about the connection being insecure, this is normal as the network doesn't have a password.