Hi Pauld_123, have you tried lower version of the software such as 19.1 (https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=24175 ) or 18.8 (https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=23684) , what is the duplex information of the switch port where the LAN adapter is connected? have you tried lowering the connection speed from 1Gbps to 100Mbps just to check if the duplex status would change?
hope this helps.
Thanks for responding sage99,
Switch reporting 1Gbps full duplex.
NC 18.7 displays correctly - "1Gbps/Full Duplex".
NC 19.1 did not update driver (same version 184.108.40.206 as supplied with18.7 for 82579LM NIC), so did not bother to test when released.
Forcing back down to 100Mbps still displays "NotAvailable".
Manually setting Duplex etc. still displays "NotAvailable".
Tested on multiple machines on different switch ports etc.
glad the 18.7 version works.
I already knew 8.7 worked as that was the previous version I had installed.
I was hoping for a fix for 19.3, or how to reported it as a 'Bug' to Intel ?
Thanks for the 'heads up' on the new version sage99.
Afraid 19.5 (19.5.303.0) installs the same driver (220.127.116.11) for the 82579LM, with the same problem.
Full uninstall and install did not help.
Just found NC Version 20.0 (18.104.22.168) - still same problem with driver 22.214.171.124 !
Downgraded to 18.7 with driver 126.96.36.199 to fix again