--- title: "esx.problem.net.e1000.tso6.notsupported" description: "Guest-initiated IPv6 TCP Segmentation Offload (TSO) packets ignored. Manually disable TSO inside the guest operating system, or use a different virtual adapter. There is an issue with VM network configuration on this host." canonical: "https://helpcenter.veeam.com/docs/mp/kb/esx.problem.net.e1000.tso6.notsupported.html" breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > vSphere Host Network Error > esx.problem.net.e1000.tso6.notsupported" dateModified: "2026-09-10" --- # esx.problem.net.e1000.tso6.notsupported ## Summary Guest-initiated IPv6 TCP Segmentation Offload (TSO) packets ignored. Manually disable TSO inside the guest operating system, or use a different virtual adapter. ## Causes There is an issue with VM network configuration on this host. ## Resolutions Check VMs network configuration. For more information, review this [VMware KB article](https://knowledge.broadcom.com/external/article/345641/virtual-machine-network-disconnect-inter.html). ## External Refer to the [VMware Online Documentation](https://techdocs.broadcom.com/) for more information on vCenter event messages and possible solutions.