I found bunanson's comment above to be true: Use any editor, modify /etc/resolv.conf =========================== nameserver 2607:FB90:BEEF:A::1 # nameserver 127.0.0.1 =========================== when using wifi, have to change back to 127.0.0.1 Does anyone know how to make this change in resolv.conf automatically when switching from wireless to an ipv6 connection? I don't know anything about Linux scripting.