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    Slow network connection from VM1 to host2. Fast connection from VM1 on host1 to VM2 on host2, Fast connection from host2 to VM1.

    I've found the following threads: https://software.es.net/iperf/faq.html Iperf3 from VM to host (Another one is slow) Iperf3 reverse (Host to VM) is fast. So it may seem to be a TSO issue. Which led me to the following threads...
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    Slow network connection from VM1 to host2. Fast connection from VM1 on host1 to VM2 on host2, Fast connection from host2 to VM1.

    Hi All, I've been digging through the forums and posts... I have an issue with slow network performance from VM1 to host2 which doesn't host the VM. Context: I have 2 separate 1GB switches (One for corosync) which use VLANs. I have Intel NUCs & Chromeboxes and am using an USB 1GB adapter for...