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ZyXEL AG-220 User’s Guide
42
Chapter 3 Wireless LAN Network
3.3.2  PIN Configuration
Each WPS-enabled device has its own PIN (Personal Identification Number). This may either 
be static (it cannot be changed) or dynamic (in some devices you can generate a new PIN by 
clicking on a button in the configuration interface). 
Use the PIN method instead of the push-button configuration (PBC) method if you want to 
ensure that the connection is established between the devices you specify, not just the first two 
devices to activate WPS in range of each other. However, you need to log into the 
configuration interfaces of both devices to use the PIN method.
When you use the PIN method, you must enter the PIN from one device (usually the wireless 
client) into the second device (usually the Access Point or wireless router). Then, when WPS 
is activated on the first device, it presents its PIN to the second device. If the PIN matches, one 
device sends the network and security information to the other, allowing it to join the network.
Take the following steps to set up a WPS connection between an access point or wireless 
router (referred to here as the AP) and a client device using the PIN method.
Ensure WPS is enabled on both devices.
Access the WPS section of the AP’s configuration interface. See the device’s User’s 
Guide for how to do this. 
Look for the client’s WPS PIN; it will be displayed either on the device, or in the WPS 
section of the client’s configuration interface (see the device’s User’s Guide for how to 
find the WPS PIN - for the AG-220, see 
Enter the client’s PIN in the AP’s configuration interface.
Note: If the client device’s configuration interface has an area for entering another 
device’s PIN, you can either enter the client’s PIN in the AP, or enter the AP’s 
PIN in the client - it does not matter which. 
Start WPS on both devices within two minutes. 
Note: Use the configuration utility to activate WPS, not the push-button on the device 
itself.
On a computer connected to the wireless client, try to connect to the Internet. If you can 
connect, WPS was successful.
If you cannot connect, check the list of associated wireless clients in the AP’s 
configuration utility. If you see the wireless client in the list, WPS was successful.
The following figure shows a WPS-enabled wireless client (installed in a notebook computer) 
connecting to the WPS-enabled AP via the PIN method.