Mi WiFi mini - WAN not starts after reboot

Installed by link https://openwrt.org/toh/xiaomi/mini (STEPS).

If restart router (restart -f via ssh or via LuCI) WAN no starts automaticly

ifdown wan, ifup wan - not helped

BUT if disconnect cable from WAN and wait some time and connect again - it works

What I have todo?

System:
Model: Xiaomi MiWiFi Mini|
Architecture: MediaTek MT7620A ver:2 eco:6
Kernel Version: 4.14.95
Firmware Version: OpenWrt 18.06.2 r7676-cddd7b4c77 / LuCI openwrt-18.06 branch (git-19.020.41695-6f6641d)

Logs:

logread | grep ppp

Sat Feb 16 00:56:55 2019 daemon.notice pppd[1937]: pppd 2.4.7 started by root, uid 0
Sat Feb 16 00:57:10 2019 daemon.warn pppd[1937]: Timeout waiting for PADO packets
Sat Feb 16 00:57:10 2019 daemon.err pppd[1937]: Unable to complete PPPoE Discovery
Sat Feb 16 00:57:10 2019 daemon.info pppd[1937]: Exit.
Sat Feb 16 00:57:10 2019 daemon.err insmod: module is already loaded - ppp_generic
Sat Feb 16 00:57:10 2019 daemon.err insmod: module is already loaded - pppox
Sat Feb 16 00:57:10 2019 daemon.err insmod: module is already loaded - pppoe
Sat Feb 16 00:57:10 2019 daemon.info pppd[2020]: Plugin rp-pppoe.so loaded.
Sat Feb 16 00:57:10 2019 daemon.info pppd[2020]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Sat Feb 16 00:57:10 2019 daemon.notice pppd[2020]: pppd 2.4.7 started by root, uid 0
Sat Feb 16 00:57:25 2019 daemon.warn pppd[2020]: Timeout waiting for PADO packets
Sat Feb 16 00:57:25 2019 daemon.err pppd[2020]: Unable to complete PPPoE Discovery
Sat Feb 16 00:57:25 2019 daemon.info pppd[2020]: Exit.
Sat Feb 16 00:57:26 2019 daemon.err insmod: module is already loaded - ppp_generic
Sat Feb 16 00:57:26 2019 daemon.err insmod: module is already loaded - pppox
Sat Feb 16 00:57:26 2019 daemon.err insmod: module is already loaded - pppoe
Sat Feb 16 00:57:26 2019 daemon.info pppd[2101]: Plugin rp-pppoe.so loaded.
Sat Feb 16 00:57:26 2019 daemon.info pppd[2101]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Sat Feb 16 00:57:26 2019 daemon.notice pppd[2101]: pppd 2.4.7 started by root, uid 0

ifdown wan

Sat Feb 16 00:58:54 2019 daemon.notice netifd: Interface 'wan' is enabled
Sat Feb 16 00:58:54 2019 daemon.notice netifd: Interface 'wan6' is enabled
Sat Feb 16 00:58:54 2019 daemon.notice netifd: VLAN 'eth0.2' link is up
Sat Feb 16 00:58:54 2019 daemon.notice netifd: Interface 'wan' has link connectivity
Sat Feb 16 00:58:54 2019 daemon.notice netifd: Interface 'wan' is setting up now
Sat Feb 16 00:58:54 2019 daemon.notice netifd: Interface 'wan6' has link connectivity
Sat Feb 16 00:58:55 2019 daemon.err insmod: module is already loaded - slhc
Sat Feb 16 00:58:55 2019 daemon.err insmod: module is already loaded - ppp_generic
Sat Feb 16 00:58:55 2019 daemon.err insmod: module is already loaded - pppox
Sat Feb 16 00:58:55 2019 daemon.err insmod: module is already loaded - pppoe
Sat Feb 16 00:58:55 2019 daemon.info pppd[2532]: Plugin rp-pppoe.so loaded.
Sat Feb 16 00:58:55 2019 daemon.info pppd[2532]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Sat Feb 16 00:58:55 2019 daemon.notice pppd[2532]: pppd 2.4.7 started by root, uid 0

ifup wan

Sat Feb 16 00:59:10 2019 daemon.warn pppd[2532]: Timeout waiting for PADO packets
Sat Feb 16 00:59:10 2019 daemon.err pppd[2532]: Unable to complete PPPoE Discovery
Sat Feb 16 00:59:10 2019 daemon.info pppd[2532]: Exit.
Sat Feb 16 00:59:10 2019 daemon.notice netifd: Interface 'wan' is now down
Sat Feb 16 00:59:10 2019 daemon.notice netifd: Interface 'wan' is disabled
Sat Feb 16 00:59:10 2019 daemon.notice netifd: Interface 'wan6' is disabled
Sat Feb 16 00:59:10 2019 daemon.notice netifd: Interface 'wan' is enabled
Sat Feb 16 00:59:10 2019 daemon.notice netifd: Interface 'wan' is setting up now
Sat Feb 16 00:59:10 2019 daemon.notice netifd: Interface 'wan6' is enabled
Sat Feb 16 00:59:10 2019 daemon.err insmod: module is already loaded - slhc
Sat Feb 16 00:59:10 2019 daemon.err insmod: module is already loaded - ppp_generic
Sat Feb 16 00:59:10 2019 daemon.err insmod: module is already loaded - pppox
Sat Feb 16 00:59:10 2019 daemon.err insmod: module is already loaded - pppoe
Sat Feb 16 00:59:10 2019 daemon.info pppd[2587]: Plugin rp-pppoe.so loaded.
Sat Feb 16 00:59:10 2019 daemon.info pppd[2587]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Sat Feb 16 00:59:10 2019 daemon.notice pppd[2587]: pppd 2.4.7 started by root, uid 0