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7 min readOct 31, 2026

Google Fiber Port Forwarding: gFiber App Steps, UPnP and Fixes

Google Fiber (gFiber) port forwarding is set in the gFiber app under Network settings > Advanced network settings > Ports. Manual rules, UPnP, your own router and fixes.

Quick Answer

Google Fiber port forwarding is done in the gFiber app. Open the Network tab, tap Network settings > Advanced network settings > Ports > Add a new rule, choose the device, a service or Custom, the protocol and the port range, then tap Save and Confirm. The same Ports screen has the UPnP switch, which often fixes Strict NAT on consoles without manual rules. If you run your own router behind the gFiber router, forward on both or use the DMZ. A VPN with port forwarding opens ports without touching the router.

Google Fiber port forwarding (the service is now branded gFiber) is done in the gFiber app: open the Network tab, then Network settings > Advanced network settings > Ports > Add a new rule. Pick the device, a service template or Custom, the protocol and the port range, then tap Save and Confirm.

The same Ports screen holds the UPnP switch, which is often enough for consoles and smart devices. Manual rules are for servers you host. If a rule still does nothing, see troubleshooting or open the port through a VPN. Other US providers: AT&T, Xfinity, Optimum.

Pick yours

Google Fiber Port Settings in the gFiber App

Everything below is on the Ports screen: Network > Network settings > Advanced network settings > Ports.

Manual port forwarding rule

Where:
gFiber app (Google Play or App Store), signed in to your account
Path:
Network > Network settings > Advanced network settings > Ports > Add a new rule > Device, Service (or Custom), Protocol, Port Range > Save > Confirm
Good to know:
The target device must be on and connected to show in the Device list. A “Network settings updated” banner confirms the change.
Setup

How to Port Forward on Google Fiber (gFiber App)

  1. 1

    Install the gFiber app

    Download it from the Google Play Store or the App Store and sign in. Make sure the target device is on and connected to your gFiber network.

  2. 2

    Open the Ports screen

    Tap the Network tab, then Network settings > Advanced network settings > Ports.

  3. 3

    Add a new rule

    Choose the Device, a Service template or Custom, the Protocol (TCP, UDP or Both) and the exact start and end ports.

  4. 4

    Save and confirm

    Tap Save, then Confirm. Wait for the “Network settings updated” banner.

  5. 5

    Allow it on the device

    Add an inbound rule in Windows Defender Firewall or the server’s own firewall for the same port.

  6. 6

    Test from outside

    Use mobile data or a port checker while the app or server is running.

Which to use

UPnP or a Manual Rule on Google Fiber?

Google Fiber suggests UPnP when a console reports Strict or Type 3 NAT, a smart camera cannot reach its cloud, or calls drop. Devices open what they need and the router closes it afterwards. Use a manual rule when you host something others connect to: a Minecraft or Ark server, Plex, FTP, a web server, or cameras viewed directly from outside.

Google Fiber also recommends deleting old rules for games and servers you no longer run. Because your public IP can change, the app’s dynamic DNS settings are worth setting up for anything you share by address. More on the trade-off: UPnP vs port forwarding.

Troubleshooting

Google Fiber Port Forwarding Not Working? Check These

The device is not in the list

It must be powered on and connected to the gFiber network when you add the rule. Reconnect it and reopen the Ports screen.

Console still Strict after UPnP

A second router or mesh system in front of the console blocks UPnP from reaching the gFiber router. Connect the console directly or fix the double NAT.

Double NAT with your own router

Forward on both routers, or make your router the gFiber router’s DMZ host so only one device translates traffic.

Wrong protocol

Many games need UDP. Choose Both if the documentation is unclear.

Nothing is listening yet

A checker reports closed while the server is stopped. Start it, then test from outside.

Old rules conflict

Remove rules for consoles or servers you replaced so two rules do not claim the same port.

Check the result with our NAT checker from outside your network, or work through the full port forwarding not working checklist.

When the router won’t open the port

Open a Port Without Google Fiber’s Router: Port-Forwarding VPN

If you live in a building where you cannot manage the router, you are stuck behind double NAT, or you would rather keep your home IP off public server lists, a VPN with port forwarding gives you an open port that does not depend on the gFiber router. Your PC keeps an outbound tunnel open and the VPN server forwards a public port down it.

Best for torrents, Soulseek and one-port apps

Proton VPN

Turn on port forwarding in the app, connect to a P2P server and Proton gives your PC one open public port, with no rule in the gFiber app.
  • Port forwarding on all paid plans (Windows, Linux; macOS in early access)
  • Works when you cannot change the building’s or gFiber router’s settings
  • One random port; it usually changes when you reconnect
  • Keeps your Google Fiber IP out of torrent swarms and game lobbies
  • 30-day money-back guarantee
−75%
Black Friday

2-year plan

Best for game servers, cameras and fixed ports

PureVPN

Choose the exact ports your server expects, or open all ports at once, and add a dedicated IP if players need an address that stays the same.
  • Open all ports in one click, or add specific ports up to 15 at a time
  • Fixed ports for game servers, Plex or cameras
  • Optional dedicated IP that stays the same between sessions
  • Apps for Windows, macOS, Linux and routers
  • 31-day money-back guarantee
−87%
Black Friday

5-year plan·$1.69/mo $12.95/mo

This page contains affiliate links. If you sign up through them, NAT Checker may earn a commission at no extra cost to you.

Rule of thumb: if the app lets you type in any port (qBittorrent, Soulseek), Proton’s random port is enough. If the server needs a fixed port or a range (Minecraft 25565, Arma 3 2302–2306, an NVR), choose PureVPN. NordVPN, Surfshark and ExpressVPN do not forward ports; more providers are compared in our VPN port forwarding guide.

Related Guides

Sources (checked October 31, 2026):

Google Fiber Port Forwarding FAQ

Open the gFiber app, tap the Network tab, then Network settings > Advanced network settings > Ports > Add a new rule. Choose the device, a service template or Custom, the protocol (TCP, UDP or Both) and the port range, then tap Save and Confirm.

For consoles showing Strict or Type 3 NAT, smart devices that cannot reach their cloud, or calls that drop, Google Fiber suggests turning UPnP on in the same Ports screen. Use manual rules when you host a server others connect to.

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