duplicate home wifi networks
for some reason I have two extra "Doug's Wi-Fi Network" showing up in my Network Systems Preferences.... first extra shows up as "Doug's Wi-Fi Network_xt" and the second extra as "Doug's Wi-Fi Network_xt_xt". I've tried to Reset Network Prefs via my iPhone 6 as well as Forget This Network with no change. On my Mac (El Capitan) I've deleted "Doug's Wi-Fi Network" and started over... but all three keep showing up.
Any help to clean this up will be greatly appreciated. Thank you!
MacBook Air, OS X El Capitan (10.11.4)