030182: Your input locations are 3D, but your network data source is 2D. Points will be located on the network as if they were in a 2D plane, ignoring all Z coordinates.

Description

The network data source is in 2D. All z-coordinates for the input locations will be ignored, and the points will be located on the network as in a 2D plane.

Solution

If this is not the expected behavior, use a 3D network dataset with the same z-coordinate system as the input locations.