> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/cortex-xsoar-8-on-prem/8.10/onboard-cortex-xsoar/cortex-xsoar-installation/system-requirements/bandwidth-and-ntp-requirements.md).

# Bandwidth and NTP requirements

Review bandwidth and NTP requirements for Cortex XSOAR 8.10 On-prem.

You need the following download bandwidth and node synchronization for Cortex XSOAR to operate properly.

**Bandwidth requirement**

The minimum required download bandwidth is 10Mbit/s for successful Cortex XSOAR upgrades and Marketplace operations.

**NTP requirement**

Ensure all nodes are synchronized with no NTP offset in order to prevent degraded storage performance.

{% hint style="info" %}

### Tip

For optimal time synchronization, it is best practice to specify either a single NTP server or at least three servers. Configuring three or more servers enables establishing a quorum, which improves synchronization reliability and allows better detection and resolution of discrepancies between time sources.
{% endhint %}


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