Configuration:
- Core i5-3570 CPU @ 3.40GHz
- 20 GB RAM
- 1TB nVME Kingston A2000
- 3TB Toshiba HDD
Network card #1: Intel 82759LM
Network card #2: Realtek 8169
VM's:
- Win7, Win10, Debian with OMV (OpenMediaVault) - perfect speeds always and they are not actively used at all
- Debian (FOG OpenProject for imaging) - we do a imaging of 10 PC's at max.
Whatever I transfer to other VM's is excellent. As soon as I enable networking on FOG VM, network goes down to 1mbps.
When I went to server room I saw this on screen. It is some bug related to Intel cards and you to do somethings to solve this.
I tried with other card Realtek, there is no error at all, but same issue appears.
Network cable is perfect. ethtool reports 1gbps speed inside each VM.
Can you point me where to look and what to test ?