G2280 Switch Errors with LACP from Windows 2012 R2/2016 - Event ID: 16949

Hello

We have multiple servers with dual fibre 10GB SFP+ NICs in but they all disagree with out DrayTek G2280 switch when we rig up LACP as a LAG to tie in with the servers. There are constant LACP errors and we see:

Log Name: System
Source: Microsoft-Windows-MsLbfoSysEvtProvider
Date: 01/10/2020 18:34:41
Event ID: 16949
Task Category: None
Level: Warning
Keywords: Classic
User: N/A
Computer: server.domain.local
Description:
Member Nic {36bc0193-ef3f-4e2d-baad-a6ade2abc522} Disconnected.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-MsLbfoSysEvtProvider" Guid="{387ed463-8b1b-42c9-9ef0-803fdfd5d94e}" EventSourceName="MsLbfoProvider" />
<EventID Qualifiers="32768">16949</EventID>
<Version>0</Version>
<Level>3</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2020-10-01T17:34:41.466981800Z" />
<EventRecordID>150149</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="1104" />
<Channel>System</Channel>
<Computer>server.domain.local</Computer>
<Security />
</System>
<EventData>
<Data Name="DriverObject">
</Data>
<Data Name="Member">{36bc0193-ef3f-4e2d-baad-a6ade2abc522}</Data>
</EventData>
</Event>

Is this an issue that can be fixed with firmware or should we just go and get a Netgear?

We found that we had to set the LACP port setting for all of the 10GE ports for short timeout to solve this problem.



Once changed, the event log ceased and 20GB operation was available.

Just to be clear - we found this with any Windows LACP set-up.
Even over 1GB copper we had to change the LACP port settings under link aggregation to timeout short