Internet down? 3 ways I use an old Android phone as a backup connection for my home router

2 hours ago 7
The champion  mode   is to usage  a USB-C to Ethernet adapter.

The champion mode is to usage a USB-C to Ethernet adapter.

Adrian Kingsley-Hughes/ZDNET

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ZDNET's cardinal takeaways

  • An Android telephone tin assistance support your location web online.
  • Router-level backup keeps much devices connected during outages.
  • You tin debar changing Wi-Fi settings connected each device.

The weather's been a small lukewarm present successful the UK, and by a small warm, I mean record-breaking temperatures, wherever the mercury deed 99.1°F/37.3°C. Not lone is this the benignant of somesthesia that's risky for the elderly, young children, oregon those doing dense carnal work, it's hard connected carnal infrastructure similar powerfulness and telephone lines. The cables supra crushed get hot, grow and sag, get caught connected worldly oregon transverse over, and atrocious things happen.

And that's precisely what I've been seeing -- a batch of powerfulness outages and downed telephone lines. I've had my powerfulness presumption retired and moving much successful the past fewer days than implicit winter. And I fishy that I'll request it much implicit the coming months and years. 

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One solution that I've been moving connected is simply a backup for erstwhile my net goes down. Sure, I person my hard-working SpaceX Starlink dish, and plentifulness of phones -- some aged and caller -- that I could enactment into work arsenic hotspots, but I've been looking for thing that my router tin autumn backmost connected erstwhile the telephone enactment goes dead.

And I person a bully crushed wherefore hotspotting doesn't work. All the gadgets and cogwheel that's connected to my Wi-Fi and relies connected an net transportation besides spell acheronian and halt moving arsenic they should. And I don't cognize astir you, but I don't privation to beryllium changing a full clump of Wi-Fi credentials successful countless devices.

As a sidenone here, I privation much networked devices would let you to participate the details for a secondary Wi-Fi transportation for specified scenarios. 

Now, I could acceptable up my hotspot with the aforesaid SSID and password credentials arsenic my main home/office Wi-Fi network, but past I'd person to messiness astir if some are moving astatine the aforesaid time.

What I request is simply a mode to link an progressive smartphone to my router, and person it enactment reliably. 

Believe it oregon not, determination are 3 options. I'll prevention the champion of these for last. 

Option 1: USB tethering

Look connected the backmost of your router. Can you spot a USB port? If so, this method could beryllium an enactment for you. You'll instrumentality a USB-A-to-USB-C cable and link the Android smartphone to the USB larboard (since astir routers inactive usage the USB-A port). 

Most routers person  a USB-A larboard  you tin  use.

Most routers person a USB-A larboard you tin use.

Adrian Kingsley-Hughes/ZDNET

Now spell to your smartphone, pat Settings, past Network & internet, followed by Hotspot & tethering. There you should spot USB tethering. 

Toggle the enactment on, and the handset volition stock its mobile information transportation implicit USB.

Toggling USB tethering successful  Android.

Toggling USB tethering successful Android.

Adrian Kingsley-Hughes/ZDNET

Many net routers volition auto-detect a USB-tethered Android instrumentality arsenic an Ethernet transportation connected the WAN port. However, fund routers and those supplied by your ISP mightiness not, truthful the lone mode to beryllium definite is to log successful to the router's admin sheet and cheque that the WAN/internet presumption shows connected.

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A bully mode to unlock precocious features connected a basal router is to instal third-party firmware similar OpenWrt oregon DD-WRT. If your router is supported (see much information here and here), this method is simply a bully mode to crook a basal router into a ace net hub.

Option 2: Wi-Fi hotspot

If you're annoyed due to the fact that I said I wouldn't bring up hotspotting, you tin chill out, due to the fact that I'm not talking astir conscionable turning disconnected your router and hotspotting straight to your smartphone the accepted way. No, this method is astir connecting your router to the smartphone's Wi-Fi hotspot, keeping your router arsenic the main router.

To usage this tactic, your router has to enactment a diagnostic called WWAN, an acronym for Wireless Wide Area Network (sometimes referred to arsenic WAN implicit Wi-Fi, Wi-Fi arsenic WAN, WISP, Wi-Fi tethering, oregon a myriad of different terms). 

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Now, here's the hitch with this method -- determination aren't galore routers that enactment this feature. To find retired if yours does, you're going to person to prod successful the admin panel, find the manual and work it, oregon hunt the web. This attack is decidedly 1 of those methods wherever you'll beryllium looking astatine your router's admin power sheet a lot.

Become friends with your router's admin panel.

Become friends with your router's admin panel.

Adrian Kingsley-Hughes/ZDNET

Travel routers, specified arsenic those by GL.iNet (including the Beryl AX, Slate 7, Mango, and others), are large due to the fact that they inherently enactment this feature. Some Draytek and Ubiquiti UniFi routers also enactment the feature. 

However, this capableness is not each that common. 

One of the champion ways to effort to get WWAN enactment is to install OpenWrt oregon DD-WRT and spot if you tin get the diagnostic to work. 

Option 3: Ethernet tethering 

This approach, successful my opinion, is the champion enactment due to the fact that it's the astir wide supported and easiest to usage due to the fact that it works with immoderate router with a WAN port, which is beauteous overmuch each router retired there.

For this, you'll request   a WAN port.

For this technqiue, you'll request a WAN port.

Adrian Kingsley-Hughes/ZDNET

First, you request a gadget. You'll request a USB-C-to-Ethernet adapter and a abbreviated portion of Ethernet cable. While astir USB-C-to-Ethernet adapters volition work, immoderate -- particularly the super-cheap ones -- won't. I've utilized adapters from AnkerUgreen, and Plugable with nary issues astatine all. Adapters powered by ASIX AX88179 oregon Realtek RTL8153 chipsets look to beryllium OK, but it tin beryllium hard to find an adapter with those chipsets. 

The USB-C to Ethernet adapter is simply a reliable mode   to link  to the router.

The USB-C-to-Ethernet adapter is simply a reliable mode to link to the router.

Adrian Kingsley-Hughes/ZDNET

My proposal present is to instrumentality to adapters successful the $10 to $20-plus terms range, and debar the super-cheap sub-$10 adapters from no-name brands. Better 'buy once, outcry once' than 'buy cheap, bargain twice.'

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The process is simple. Connect the adapter to the Android smartphone's USB-C port. Android should automatically observe the adapter. Next, link a bog-standard Ethernet cablegram betwixt the adapter and the WAN/internet larboard connected the router (the larboard should beryllium marked otherwise to immoderate different ports connected the router). 

Now spell to your smartphone, pat Settings, past Network & internet, followed by Hotspot & tethering. There you should spot Ethernet tethering. 

Enabling Ethernet tethering successful  Android.

Enabling Ethernet tethering successful Android.

Adrian Kingsley-Hughes/ZDNET

Toggle the enactment on, and the handset volition stock its mobile information transportation implicit Ethernet.

Don't premix these steps oregon you'll person problems. 

And that's it. No other configuration is usually needed to get this attack to work. 

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One hitch with this method that you mightiness person already figured retired is that if you're utilizing a USB cablegram to link the smartphone to the router, oregon you're utilizing the Wi-Fi version, the handset should complaint implicit the USB cable, oregon it'll beryllium disposable for charging. However, the handset won't complaint with an Ethernet adapter connected. This contented means you indispensable docket immoderate downtime to complaint the handset regularly (turning disconnected Wi-Fi and Bluetooth volition marque the artillery past longer). 

Alternatively, you tin usage a USB-C multi-port hub arsenic your adapter. 

A USB-C multi-port hub volition  besides  work.

A USB-C multi-port hub volition besides work.

Adrian Kingsley-Hughes/ZDNET

Again, chipset matters present (not each volition work), and the instrumentality perfectly needs to beryllium a PC oregon Power Delivery hub; otherwise, the telephone volition besides person the other workload of powering the hub, which drains the artillery adjacent faster. This contented means you'll request different cablegram and a adjacent charger to support the hub powered and the telephone charged.

What astir iPhone?

You had to ask. And due to the fact that it's Apple, things get complicated.

USB tethering works… benignant of. The iPhone has nary occupation sharing its cellular information implicit USB erstwhile Personal Hotspot is enabled, and a cablegram is plugged in. 

However, an iPhone uses a proprietary Apple protocol, truthful the router needs to enactment iPhone tethering. In my experience, GL.iNet routers person nary problems, but galore others do. My proposal is to cheque your router's manual for 'iPhone tethering support' alternatively than conscionable 'USB tethering.'

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Having a router moving OpenWrt oregon DD-WRT helps, but lone if you're experienced utilizing the software. You person to instal further packages and spell done a one-time pairing each clip your telephone is rebooted. Also, if your iPhone is locked erstwhile the router reboots, it won't automatically connect.  

The Wi-Fi method should work, and immoderate router that supports WWAN should enactment successful the aforesaid way.

As for Ethernet tethering, that's a large nary for the iPhone. 

The bottommost line

An aged Android telephone is simply a large mode to support web continuity if your main net transportation goes down. You volition request to person an progressive information program connected that phone, but it's not hard to drawback a data SIM card for the job. 

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