You receive a Faulted LACP negotiation error when trying to configure NIC Teaming (LACP) between a Datto Switch and Windows Server 2012 R2.
- Datto Switches
LACP requires the server and switch to have the same time-out setting. By default, Datto switches are set to slow time-out. If the settings do not match, you will see a Faulted LACP negotiation error in the Windows NIC Teaming interface.
Microsoft has published a hotfix enabling slow time-out on the server:
This worked when the following variables match:
- Teaming mode: LACP
- Load balancing mode: Dynamic