From Wiki Knowledge Base | Teltonika Networks
This is the approved revision of this page, as well as being the most recent.
Main Page > FAQ > Networking > USB-Ethernet Routing (TRB140)
On TRB140 when trying to reach ethernet interface from USB interface, it is blocked by default on the bridged LAN. To unblock it, navigate to Network > Firewall menu and change "Forwarding" action from "reject" to "accept" in lan rule.