In Windows Server 2016, there's a new feature that lets administrators configure the Link Aggregation Control Protocol (LACP) timer in either a "Fast" or "Slow" mode, depending on the device.
When you create a NIC Team for Load Balancing and Failover (LBFO) on Windows Server 2016 by using the New-NetLbfoTeam cmdlet, and you define the LACP Timer as Fast, the LBFO team that's created is configured with a Slow LACP Timer instead.
To work around this issue, use the Set-NetLbfoTeam cmdlet to make the LBFO team use the correct LACP timer.
Set-NetLbfoTeam -LacpTimer Slow
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.