---
metadata:
  - name: generator
    content: Diplodoc Platform v5.52.0
alternate:
  - https://ydb.tech/docs/en/troubleshooting/performance/infrastructure/network.md
  - https://ydb.tech/docs/ru/troubleshooting/performance/infrastructure/network.md
  - href: en/troubleshooting/performance/infrastructure/network.md
    type: text/markdown
    title: Markdown version
  - href: ../../../llms.txt
    type: text/markdown
    title: llms.txt
sourcePath: en/core/troubleshooting/performance/infrastructure/network.md
---
> **Documentation Index:** Fetch the complete configuration index at https://ydb.tech/docs/en/llms.txt

# Network issues

Network performance issues, such as limited bandwidth, packet loss, and connection instability, can severely impact database performance by slowing query response times and leading to retriable errors like timeouts.

## Diagnostics

<!-- The include is added to allow partial overrides in overlays  -->
<!-- source: en/troubleshooting/performance/infrastructure/_includes/network.md -->
To diagnose network issues, use the healthcheck in the [Embedded UI](https://ydb.tech/docs/en/reference/embedded-ui/index.md):

1. Open the [Embedded UI](https://ydb.tech/docs/en/reference/embedded-ui/index.md):

    1. Navigate to the **Databases** tab and click on the desired database.

    1. In the **Navigation** tab, confirm the required database is selected.

    1. Switch to the **Diagnostics** tab.

    1. Under the **Network** tab, apply the **With problems** filter.

        ![](_assets/diagnostics-network.png)

2. Use available third-party tools to monitor network performance metrics such as latency, jitter, packet loss, throughput, and others.
<!-- endsource: en/troubleshooting/performance/infrastructure/_includes/network.md -->

## Recommendations

Contact the responsible party for the network infrastructure the YDB cluster uses. If you are part of a larger organization, this could be an in-house network operations team. Otherwise, contact the cloud service or hosting provider's support service.