Brother NC-2100p - Manual (Page 90)

APPENDIX
APPENDIX-2
How to print the Configuration page
To print the configuration page, use a fine ball point pen to hold down the Test
button on the back of the print server for less than 5 seconds.
Note: If you hold the Test button on the back of the print server for more than 5
seconds all network settings will be reset to default.
Figure 1 Test button
Some models may be unable to print the configuration page. In that case, you can
check the printer network configuration using BRAdmin Professional utility or Web
Based Management.