Kyocera KR1 manual No Encryption is the default as shown in the screen above

Basic > Wireless (Security–No Encryption)

Wireless Mode- Enabled is the default . Selecting this option will allow you to set your Wireless Access Point (WAP) settings. Selecting Disabled, will grey-out all Security radio buttons (please see “Security” below).

SSID-	Service Set Identifier (SSID) is the name designated for a specific wireless local area network
	(WLAN). The SSID's factory default setting is KR1. The SSID can be easily changed to
	establish a new wireless network.
	(Note: SSID names may contain up to 32 ASCII characters).
Channel-	Auto Select is the default . Devices on the network must share the same channel. (Note: Wireless
	adapters automatically scan and match the wireless settings. You may also select the channel you
	wish to use).
Security-	You may select from three levels of encryption to secure your wireless network:
	No Encryption, WEP, or WPA-PSK.

Security- No Encryption is the default (as shown in the screen above).

10 Kyocera KR1 Mobile Router User Guide