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

# Troubleshoot packet loss and high ping

Packet loss or ping response times above 110 ms point to congestion or routing problems on the path between client and server. When a server returns [no response](/hosting/dedicated-servers/troubleshooting/troubleshoot-a-server-that-is-not-responding-to-ping-requests) at all rather than a slow one, different troubleshooting applies.

<Steps>
  <Step title="Disable VPN or proxy">
    If a VPN or proxy is active, disable it and run the ping test again. If performance improves, the issue is with the intermediate server. Connect without it or switch to a different VPN or proxy provider.
  </Step>

  <Step title="Revert network settings">
    If network settings were recently changed, restore the previous configuration and ping again. If performance improves, continue using the earlier settings.

    To reset network settings to defaults, reinstall the OS:

    * [OS template](/hosting/dedicated-servers/manage/operating-system/install-a-linux-os-from-a-template)
    * [ISO image](/hosting/dedicated-servers/manage/operating-system/install-a-linux-os-from-your-iso-image)
  </Step>

  <Step title="Contact support">
    If the steps above don't apply or don't resolve the issue, [contact support](/hosting/contact-our-technical-support) with the following information:

    * Whether a VPN or proxy was in use, and whether disabling it helped.
    * The server IP address.
    * The IP address from which the server is being pinged with poor results.
    * The country and city of the client experiencing the issue.
    * The date and time in UTC+0 when the problem occurred.
    * The output of **ping** and **tracert** (Windows) or **ping** and **traceroute** (Linux) or **mtr** (Unix) from the client to the server.
    * The output of **ping** and **tracert** (Windows) or **ping** and **traceroute** (Linux) or **mtr** (Unix) from the server to the client.

    This information helps diagnose the issue quickly.
  </Step>
</Steps>