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WAN setting or local reservationU.S. national guide using Google Nest/Wifi examples

Home network address decision

Reviewed and updated September 24, 2026

Is a local IP reservation the same as a static address from your ISP?

No. In Google Nest/Wifi guidance, a DHCP reservation keeps the same local address for a device on your home network. Google says those local addresses are not found by the outside world. That is different from the router's WAN connection setting: the internet provider normally determines whether the WAN connection uses DHCP or an ISP-supplied static address.

Start with the result you need. For a printer or another device that must keep a predictable address inside the home, investigate a local reservation in the router's instructions. For an ISP-supplied static WAN setting, ask the provider what it assigned before changing the router. If your aim is to reach a device from outside, neither setting alone proves that you have a public, reachable address; that requires a separate provider check.

Before changing a connection settingRecord the current configuration and use the instructions for your exact router or provider; this guide does not diagnose your household connection.
See what changes by location

What varies by provider

Your ISP, plan and router model determine the available settings and support path.

U.S. national guidance

What changes after you choose a location?

Choose a state to make the geographic boundary explicit.

ZIP entry is not needed to understand this question and does not verify inbound reachability.

Applies nationallyThe Google documentation illustrates the distinction; it does not set a nationwide ISP policy.
Must be confirmed locallyA city or ZIP code cannot reveal whether one account has a public or static address.
Separate safety, observed conditions and project scope

Which situation best matches the home?

01

A printer or another device loses its familiar local address

Google describes a DHCP reservation as assigning the same local address to a particular device whenever it reconnects. That is a LAN setting, not a public-address order.

Notice next: Note which device needs a stable local address and the router model; avoid posting the address publicly.

02

The provider gave you a static WAN configuration

Google distinguishes WAN DHCP from a static address reserved with an ISP. Follow the provider's exact connection details rather than selecting a setting by guesswork.

Notice next: Ask the provider whether it actually assigned a static WAN address and which router settings it supports.

03

You need to reach a home device from outside

A fixed local device address and an ISP-supplied WAN setting answer different questions. Neither Google page proves public reachability or rules out provider-level translation.

Notice next: Describe the intended use to the ISP and ask about the address and inbound-connection policy for your exact service.

Safe observation

What to have ready for support

Keep sensitive values private; the distinction is about the setting and your goal.

These observations help route the question; they cannot confirm CGNAT, a public address or inbound access.

What to record
  1. Router maker and model
  2. Whether you are changing a device's local address or the router's WAN setting
  3. Whether the ISP explicitly supplied static-WAN details
  4. Whether the goal is local device discovery or outside access
Stop and get appropriate help
  • Do not enter guessed static-WAN values or change an unknown provider configuration solely to test a theory.
  • Do not share passwords, complete IP addresses or account details in a public request.
Move from information to action

Who is the useful next contact?

Router-maker support or the exact product manual

You need a local-device reservation or cannot find the matching LAN setting.

  • Router model
  • Device type
  • The local-network task
Your internet provider

You need ISP-assigned WAN values or want to know whether the plan permits outside access.

  • Service plan
  • Router model
  • The intended connection without revealing account secrets publicly

A support contact is not proof that a static or publicly reachable address is available, or that a technician visit is needed.

Professional help

Use this guide to prepare for a qualified local professional.

The available connection is for a new internet-service request only. Technical support, billing, cancellation and existing-account requests must go to the current provider.

No support or billing line is offered on this guide

Check licensing, service area, schedule, scope and written estimate directly with professionals you consider.

Short answers

Questions people ask before the call

Will reserving a device's local IP give me a public static IP?

No. Google's reservation instructions apply to a device inside the router's local network; the WAN assignment is a separate provider-side question.

If the router says static WAN, can I reach a camera remotely?

Not established. The cited Google pages do not determine public reachability, CGNAT or your provider's inbound-connection policy.

Should I change DHCP to static to fix a game NAT warning?

Not on this evidence alone. First separate the local-device setting from the WAN arrangement, then use the dedicated NAT decision guide and provider support.

Sources and boundaries

What supports this guide?

  • Google Home and Nest Help — WAN settingsGoogle Nest/Wifi example of ISP-selected WAN DHCP and an ISP-reserved static connection address; not a universal ISP policy. Scope: national. Source checked 2026-09-24. Confirm address-specific requirements with the relevant local authority or qualified professional.
  • Google Home and Nest Help — Set DHCP IP reservation or a static IP address for a deviceA local-device DHCP reservation and the explicit distinction between local addresses and the router's WAN address. Scope: national. Source checked 2026-09-24. Confirm address-specific requirements with the relevant local authority or qualified professional.

The examples are from Google Nest/Wifi, not instructions for every router.

Neither source verifies this household's public address, CGNAT status or inbound reachability.

No ISP availability, plan price or specific account configuration is asserted.