Hey,
You should check if RDMA is enabled on your adapters. It might be related to the issue. Try disabling it: Disable-NetAdapterRdma -Name "MyAdapter"
Might be helpful: https://learn.microsoft.com/en-us/answers/questions/732498/switch-embedded-teaming-on-non-rdma-supported-nics
In addition, if you need shared storage for Failover Cluster, you can use StarWind VSAN to create replicated shared storage for VMs. https://www.starwindsoftware.com/resource-library/starwind-virtual-san-for-hyper-v-2-node-hyperconverged-scenario-with-windows-server-2016/
Cheers,
Alex Bykovskyi
StarWind Software
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