не стартует ip4 только ip6

при включения роутера и компа запускаетя только ип6. надо заново переподключать сеть из трея чтобы повяился ип4.

Раньше как то настраивал в /etc/network/interfaces
но забыл
======================================
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback



auto enp10s0
iface enp10s0 inet static
address 192.168.1.31
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
=========================================
РАБОТАЕТ ИП6

ifconfig
enp10s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 1111111111:e82d:0:aab0:1965:8289:e1f3 prefixlen 64 scopeid 0x0<global>
inet6 11111:e82d:0:c1c6:6998:ff2e:b844 prefixlen 64 scopeid 0x0<global>
inet6 111111111111e:4bb4:7fb3 prefixlen 64 scopeid 0x20<link>
ether 00:33333333333 txqueuelen 1000 (Ethernet)
RX packets 3026 bytes 2209538 (2.2 MB)
RX errors 0 dropped 1 overruns 0 frame 0
TX packets 3256 bytes 584525 (584.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Локальная петля (Loopback))
RX packets 1748 bytes 152932 (152.9 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1748 bytes 152932 (152.9 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
==========================
переподключение работает ип6 ип4

enp10s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.31 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 13221312
inet6 f123123123126998:ff2e:b844 prefixlen 64 scopeid 0x0<global>
inet6 12312324:7fb3 prefixlen 64 scopeid 0x20<link>
inet6 1231233:c1c6:6998:ff2e:b844 prefixlen 64 scopeid 0x0<global>
inet6 1231231231237e:251b:382a:e64c prefixlen 64 scopeid 0x0<global>
ether 00:223:22:c3:e5:02 txqueuelen 1000 (Ethernet)
RX packets 6940 bytes 7202328 (7.2 MB)
RX errors 0 dropped 1 overruns 0 frame 0
TX packets 5926 bytes 901742 (901.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Локальная петля (Loopback))
RX packets 2354 bytes 206178 (206.1 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2354 bytes 206178 (206.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0