Thank you for posting at Wired Communities. Please refer to http://www.intel.ph/content/www/ph/en/support/network-and-i-o/ethernet-products/000007255.html as this has to do with the network management agent or other software (such as "Network sniffer").
Just to double check both machines integrated with the same ethernet controller I219-LM ?
Thank you Sharon.
The link did point me to the newest drivers ( I month old! ) for the Ethernet adapter. I installed it.
Gives a list of devices ( e1d ) and what "magic" keyword: MonitorMode value 1 to add to the registry.
I had already done that but did it again.
I do not use vlan so that is a non issue.
The other units are not using the same Ethernet adapters.
The "hub" is just that: a hub. Dumb as a stick. A Bell 2000 device. The Ethernet hub part of the device is not programmable. Plus is does pass through of other protocols such as 'BACnet over Ethernet' that are not routable.
Still my sniffer "wireshark" can only see data that is sent to or from the pc on which it runs.
Just to double check if you have checked with Wireshark as the software can't capture the packets, understand the promiscuous is already enabled. Here is the reference information you may refer to: https://wiki.wireshark.org/HubReference (Please note this is third party website for your reference only, Intel has no control over the content therein).
Please feel free to update met.