Hi,
to combat internet outage from our fiber service provider we have recently added a Huawei E3372h-320 4G USB-dongle with sim-card to the RV345. Its intended strictly as failover/backup. So far It is working great for that purpose.
My issue is that bandwidth usage seems unnecessary high when not in use. It draws about 400MB every day.
Its plugged in USB2 port, and in Multi-WAN settings table, "precedence for failover" I've set USB2 as number 2 after WAN1. (All the load balance fields is greyed out) Have tried disabling "Network service detection" but no difference, and I cant see any settings that explains this behavior. RV345 is on firmware 1.0.03.20, E3372 is on 10.03.1
Is this normal, or can i do something (other than disconnect) to keep it from sucking 10-15 GB pr month from mobile-plan?