Asus DSL-N13 - Manual (Page 30)

DSL-N13 Wireless ADSL 2/2+ Modem Router User Manual
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2. Setting up channel
Click Wireless -> Advanced. Set Channel to 11 and click Save/Apply.
You can check Enable ASUS PassPhrase and input a string in Passphrase field to let
the system generate the Network Keys. You can also disable Passphrase and input four
keys manually. When finished, click Save/Apply.