---
title: "Network Down DHCP Failed Stuck Initializing Failed to Boot"
slug: "network-down-dhcp-failed-stuck-initializing-failed-to-boot"
updated: 2026-05-21T18:28:56Z
published: 2026-05-21T21:27:00Z
canonical: "help.8x8.com/network-down-dhcp-failed-stuck-initializing-failed-to-boot"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.8x8.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Network Down DHCP Failed Stuck Initializing Failed to Boot

## Symptom

Poly phone is displaying Network Is Down, Network Link is Down, DHCP Failed, stuck at Initializing, or Failed to boot.

## Applies To

- Poly Phones

## Resolution

1. Verify the cabling is plugged into the correct ports.
2. Replace potential faulty cabling.
3. Power cycle the affected phone(s).
4. Perform a network power cycle.
5. Bypass the wall port or switch and connect directly to the router to isolate potential hardware issues.
6. Set a static IP on the phone. See [Set a Static IP on a Poly Phone](/support/docs/set-a-static-ip-on-a-poly-phone) .
7. Ensure the router is giving out IPv4 addresses via DHCP, and not providing IPv6 addresses to the phone(s).
8. If the issue persists and is only occurring on a single phone, factory reset and re-provision the phone. See [How to Reset Poly Phone to Factory Default Settings](/support/docs/how-to-reset-poly-phone-to-factory-default-settings).

## Cause

This issue can occur due to:

- A DHCP failure has occurred on the network
- The phone's LAN port has failed
- The DHCP server is providing IPv6 addresses

## Additional Information

If you are at a rented office location, the local IT group will likely need to be contacted to white-list the phone's MAC address on the switch. Poly phones are not compatible with IPv6 addressing, and the phones will not be able to receive DHCP via IPv6.