Connecting via Debian Linux 10. I'm only getting ipv6 addresses which don't want to work half the time. How can I disable ipv6, Brand new unit ac2600 dual band.  Disabling ipv6 in my debian gnome wifi connections dialog makes connection impossible. When I first connect to the device to set it up I have an ipv4 address. Its only after configuring it and connecting it my internet router does it switch to ipv6 only

(added build number)

Edit: I updated to the latest firmware. I extended the IP 4 lease to maximum so I have an IP 4 link now in addition to IP 6 but it still wont find site like superuser.com or properly connect dropbox.  Since I just bought it I'm a bit concerned they sent me a V1 box. Is there a huge difference in V2?

Edit #2 : So, it's down to Debian NOT requesting an IPv4 lease at connection.

There are two ways to fix this

(1) add a script in /etc/network/if-up.d to request a lease (dhclient $IFACE)

#!/bin/sh
# copy to /etc/network/if-up.d as root to get a new ip address when connecting to wifi 
# edit wlp3s0 as required

case "$IFACE" in
    lo)
        # The loopback interface does not count.
        # only run when some other interface comes up
        exit 0
        ;;
   wlp3s0)
        dhclient wlp3s0
        ;;
    *)
        ;;
esac
 

(2) configure a manual address (in my case 192.168.2.100, 255.255.255.0, 192.168.2.1) using NetworkManager

Now it works. Wholly unsatisfactory as my other TP-LINK extender works just fine with no manual IPv4 lease request required.