Brother MFC-J4510DW Manual page 14

Troubleshooting
Error messages when configuring Wi-Fi Direct from the control panel menu (continued)
Error Message
(For MFC-J2510/J4510DW)
No Device
(For MFC-J2510/J4510DW)
A device is
already connected.
Press [OK].
Cause
The Brother machine cannot find your
mobile device.
Another mobile device is already connected
to the Wi-Fi Direct network where the
Brother machine is the G/O.
Action
 Make sure your machine and mobile
device are in the Wi-Fi Direct mode.
 Move the mobile device closer to your
Brother machine.
 Move your Brother machine and the
mobile device to an obstruction-free
area.
 If you are manually configuring the Wi-Fi
Direct network, make sure you have
entered the correct password.
 If your mobile device has a configuration
page for how to obtain an IP address,
make sure the IP address of your mobile
device has been configured via DHCP.
After the current connection between your
Brother machine and another mobile device
has shut down, try configure the Wi-Fi
Direct settings again. Confirm the
connection status by printing the Network
Configuration Report (see Network User's
Guide: Printing the Network Configuration
Report).
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