Nighthawk M2 - setting to WPA, WEP or WPA2 security

My Nighthawk M2 mobile router cannot be detected by my Smart TV which supports IEEE 802.11 a/b/g/n/ac communication protocols but can only connect to a wireless network using WPA, WEP or WPA2 security.

Does the NightHawk M2 support any of these protocols and how can I configure it to use them?  Currently the TV does not detect the wireless network, even when the functioning Nighthawk M2 with other devices connected is only a few feet away.

Any help appreciated.

Ken