3Com 3C15500 - Network Director User Manual page 729

Examples 725
Figure 385 Map Showing Multiple Links
31 The map no longer shows the other WAN interfaces for the WAN router
that has multiple active WAN interfaces. To rectify this, run a rediscovery
of one of the subnets that the router is on by selecting the subnet in the
map and selecting Tools > Network Discovery. This recreates the
representations of the other WAN interfaces.