Brother RJ-3050 User Manual page 182

Troubleshooting
Your Brother printer cannot print over the network.
Your Brother printer is not found on the network even after successful installation. (continued)
Question
Is your Brother printer correctly
connected to the network?
I have checked and tried all the
above, but my Brother printer
does not print. Is there anything
else I can do?
I'm using security software.
Question
Did you choose to accept the
security alert dialog box during
the standard installation or
BRAdmin Light installation or
when using the printing features?
What port numbers are required
for the Brother network features?
I want to make sure that my network devices are working correctly.
Question
Are your Brother printer, access
point/router or network hub
turned on?
Where can I find my Brother
printer's network settings, such
as IP address?
Solution
For RJ-3050, check the Wi-Fi indicator on the printer.
: The network is correctly connected.
(flashes once every 3 seconds): The network is not connected correctly, and
the wireless network setup must be reconfigured.
For RJ-3150, check the WLAN icon on the LCD display.
: The network is correctly connected.
The network is not connected correctly, and the wireless network
:
setup must be reconfigured.
: The wireless network settings are disabled.
Uninstall the printer driver and the software, and then reinstall them.
Solution
If you did not choose to accept the security alert dialog box, the firewall function of
your security software may be rejecting access. Some security software might
block access without showing a security alert dialog box. To allow access, see the
instructions of your security software or ask the manufacturer.
The following port numbers are used for Brother network features:
 BRAdmin Light i Port number 161 / Protocol UDP
For details on how to open the port, see the instructions for the security software
or ask the manufacturer.
Solution
Make sure you have confirmed all instructions in Make sure you have first checked
the following: on page 170.
Check [Communication settings] in the [Printer Setting Tool].
See Printer Setting Tool on page 49.
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