Brother NC-2200W - Manual (Page 29)

2 - 18 NC-2200W WIRELESS SETTING
NC9100h_FM6.0
10 When configuring your Brother Wireless device, you must
ensure that it is configured to match the Authentication and
Encryption settings of your existing wireless network. If your
network is configured for Authentication and Encryption, choose
the Authentication Method and Encryption Mode from the
pull downs in each setting box. Then enter the Network Key
and click Next.
11 Click Next to submit the settings to the NC-2200w.
12 When the Setup Complete screen appears, click Next.