Thank you - seeing these numbers makes troubleshooting so easy! Based on this statistics, my only guess is that there is some QoS mechanism in place on the networking equipment that limits bandwidth per connection. To verify this, try disabling multiple TCP/IP connections option in Veeam settings under Traffic Throttling settings, and see if this reduces the backup performance. I would recommend creating a very small VM for testing this, and trying full backup with and without multiple connections option enabled. And post the results (time to perform full backup) here. Thanks!