Discovering ALC from Niagara 4

[theGAXman]

I've got an Automated Logic site with 11 LGRs, each with an ARCnet segment under it.
I'm trying to discover the ALC controllers in a soft JACE.
If I manually add an LGR to the router table, I can then manually add a controller from that network, and it will let me discover points. But I haven't discovered a single controller.
My usual tricks are to register the JACE as a foreign device, or set it up as a BBMD, but neither has made a difference.

I'm using BACnet IP on the JACE, with a unique Device ID, and the IP network number set to 2400 (I also tried 1 and 2).

What am I missing?

LGRs:


Example Controllers:


The soft JACE's IP info:
IPv4 Address. . . . . . . . . . . : 192.168.8.46
Subnet Mask . . . . . . . . . . . : 255.255.248.0
Default Gateway . . . . . . . . . : 192.168.15.254

[xarralu]

Try setting your IP network number to 0.

[theGAXman]

Tried net 0, the JACE rejects it and goes into fault.

[control$]

Can WebCTRL discover the Jace?

[MaxBurn]

Review network subnets and BBMD tables, everyone gets the same table. Match whatever the WebCTRL network number is at IP level.