Three factors typically sabotage smooth Ethernet switching: outdated firmware, hardware limitations, and misconfigured networks. In Figure 2-36, a server is dual-homed to a Layer 2 network through an M-LAG. As link aggregation between hosts and access devices only achieves link-level reliability, a fault on an access device may cause service interruption. Objective: remove all internal networks from MikroTik so that it becomes a PE (Provider Edge). Before rectifying the fault, you can determine the fault scope by sending ping packets. The problem often creeps in silently—degraded speeds, intermittent downtime, or latency spikes that everyone blames on “the internet. ” But what if the culprit is your.