Memory allocated for packets in a vRss queue (on CPU 0) on switch 6E77ECEF-A708-429D-9445-44A21279DFF6 (Friendly Name: Wan Switch) due to low resource on the physical NIC has increased to 512MB. Packets will be dropped once queue size reaches 512MB.

Hello

I run a Host Hyper-V 2019 with 32 cores and I get this error:

Memory allocated for packets in a vRss queue (on CPU 0) on switch 6E77ECEF-A708-429D-9445-44A21279DFF6 (Friendly Name: Wan Switch) due to low resource on the physical NIC has increased to 512MB. Packets will be dropped once queue size reaches 512MB.

This happens when we have lot of traffic because inside Hyper-V there are many Virtual Machines and this is supposed to happen more when traffic is high in packets - we run 1 Gbps netwrok card and use around 300Mbps when this happens.

VMQ and RSS was enabled in physical card but not VMQ not enabled in VM hardware acceleration option in network card.

When it happens we have timeouts completely which disconnects everything from outside to server - connection is lost completely.

Any idea about it and how to fix ?

THank you