---
title: "Dropped received/transmitted packets errors"
slug: "dropped-received-transmitted-packets-errors"
updated: 2025-09-02T09:47:52Z
published: 2025-09-02T09:47:52Z
canonical: "support.controlup.com/dropped-received-transmitted-packets-errors"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.controlup.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Dropped received/transmitted packets errors

If you see a high rate of dropped packets reported by ControlUp, check if the issue is mainly with XenServer or Vmware ESXi. ![Dropped received packet column](https://cdn.document360.io/098100b7-b9da-4bea-b4b9-017140ab863e/Images/Documentation/11500719592911.png)

In this example we noticed that it wasn’t only the Horizon VMs but **all VMs** that reside on the vSphere Cluster had the dropped packets issue. ![Dropped received packet column](https://cdn.document360.io/098100b7-b9da-4bea-b4b9-017140ab863e/Images/Documentation/115007148105111.png)

When we checked the vSphere Performance charts for affected VMs, we saw that it definitely showed a packet loss issue. ![vSphere Performance chart with receive packets dropped](https://cdn.document360.io/098100b7-b9da-4bea-b4b9-017140ab863e/Images/Documentation/1150071958891111.png)

With the specific patch installed only on one host (**ESX01**), packet loss issue is no longer present on this specific host (stress found below is related to high CPU utilization and other metrics). ![stress level in console](https://cdn.document360.io/098100b7-b9da-4bea-b4b9-017140ab863e/Images/Documentation/11500719590911111.png)