Dell 2155cn/cdn Color Laser Printer - Manual (Page 92)

90 Installing Optional Accessories
f Click Close in the dialog box after confirming the connection is a
success.
For Windows Server 2008 R2 and Windows 7:
a Open Control Panel.
b Select Network and Internet.
c Select Network and Sharing Center.
d Select Connect to a network.
e Select the setting you send to the printer from the network items listed in
the available network list, and click Connect.
f Enter the Security key and click OK, if necessary.