Two LTE modems Huawei E3372h (HiLInk) in 6.40 stops data transfer every 10-20 mins, it is active, no warning logs but wan is down.
Both modems connected via active USB HUB with RB3011UiAS-RM.
Helps only disable and then enable modems in interface list.
My config below.
# jul/29/2017 14:30:00 by RouterOS 6.40
# software id = YY5T-Y28T
#
# model = RouterBOARD 3011UiAS
# serial number = 783D000000A3
/interface lte
set [ find ] apn="" mac-address=0C:00:8F:00:9A:64 name="LTE MTS-2"
set [ find ] apn="" mac-address=0C:00:8F:00:9A:64 name="LTE Megafon"
/interface bridge
add name=BridgeLocal
/interface ethernet
set [ find default-name=ether1 ] name=ether1-Master
set [ find default-name=ether2 ] master-port=ether1-Master
set [ find default-name=ether3 ] master-port=ether1-Master
set [ find default-name=ether4 ] master-port=ether1-Master
set [ find default-name=ether5 ] master-port=ether1-Master
set [ find default-name=ether6 ] name=ether6-Master2
set [ find default-name=ether7 ] master-port=ether6-Master2
set [ find default-name=ether8 ] master-port=ether6-Master2
set [ find default-name=ether9 ] master-port=ether6-Master2
set [ find default-name=ether10 ] master-port=ether6-Master2
/ip pool
add name=dhcp ranges=192.168.1.2-192.168.1.254
/ip dhcp-server
add address-pool=dhcp disabled=no interface=BridgeLocal lease-time=0s name=dhcp1
/interface bridge port
add bridge=BridgeLocal interface=ether1-Master
add bridge=BridgeLocal interface=ether6-Master2
/ip address
add address=192.168.1.1/24 interface=ether1-Master network=192.168.1.0
/ip arp
add address=192.168.1.107 interface=BridgeLocal mac-address=00:11:32:0B:FC:99
add address=192.168.1.16 interface=BridgeLocal mac-address=08:2E:5F:B8:CA:4F
add address=192.168.1.55 interface=BridgeLocal mac-address=14:D6:4D:EA:7A:70
add address=192.168.1.3 interface=BridgeLocal mac-address=14:D6:4D:EA:77:C8
/ip dhcp-client
add add-default-route=no dhcp-options=hostname,clientid disabled=no interface="LTE Megafon" use-peer-ntp=no
add add-default-route=no dhcp-options=hostname,clientid disabled=no interface="LTE MTS-2" use-peer-dns=no use-peer-ntp=no
/ip dhcp-server lease
add address=192.168.1.16 client-id=1:8:2e:5f:b8:ca:4f mac-address=08:2E:5F:B8:CA:4F server=dhcp1
add address=192.168.1.15 client-id=1:34:c0:59:8c:67:a3 mac-address=34:C0:59:8C:67:A3 server=dhcp1
/ip dhcp-server network
add address=192.168.1.0/24 gateway=192.168.1.1 netmask=24
/ip dns
set allow-remote-requests=yes servers=8.8.8.8,8.8.4.4
/ip firewall filter
add action=accept chain=input disabled=yes in-interface="LTE Megafon"
add action=accept chain=input disabled=yes in-interface="LTE Megafon"
add action=accept chain=input disabled=yes in-interface="LTE MTS-2"
/ip firewall mangle
add action=mark-connection chain=input in-interface="LTE Megafon" log=yes new-connection-mark=LTE-MEGAFON-1 passthrough=yes
add action=mark-connection chain=input in-interface="LTE MTS-2" log=yes new-connection-mark=LTE-MTS-2 passthrough=yes
add action=mark-routing chain=output connection-mark=LTE-MEGAFON-1 new-routing-mark=Route-LTE-MEGAFON-1 passthrough=no
add action=mark-routing chain=output connection-mark=LTE-MTS-2 new-routing-mark="Route-LTE MTS-2" passthrough=no
add action=mark-routing chain=prerouting new-routing-mark=Mixed passthrough=yes src-address=192.168.1.0/24
/ip firewall nat
add action=masquerade chain=srcnat src-address=192.168.1.0/24
/ip route
add check-gateway=ping distance=1 gateway=192.168.9.1 routing-mark=Route-LTE-MEGAFON-1
add check-gateway=ping distance=1 gateway=192.168.6.1 routing-mark="Route-LTE MTS-2"
add check-gateway=ping distance=1 gateway=192.168.9.1,192.168.6.1 routing-mark=Mixed
/ip service
set telnet address=192.168.1.0/24
set ftp address=192.168.1.0/24
set www address=192.168.1.0/24
set ssh address=192.168.1.0/24
set api address=192.168.1.0/24
set winbox address=192.168.1.0/24
set api-ssl address=192.168.1.0/24
/ip upnp
set allow-disable-external-interface=yes enabled=yes
/ip upnp interfaces
add interface="LTE MTS-2" type=external
add interface=BridgeLocal type=internal
add interface="LTE Megafon" type=external
/routing igmp-proxy
set quick-leave=yes
/system clock
set time-zone-autodetect=no time-zone-name=Europe/Moscow
/system logging
set 0 disabled=yes
add topics=lte