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Plan a backup for when your broadband fails

Answer two quick questions and we’ll recommend the right backup: phone tethering or a cheap data SIM for occasional use, automatic 4G/5G failover if staying online is critical and your signal is good, or a second fixed line where mobile signal is weak.

Last updated: · Written by The NetSorted team

How important is it to stay online if your main broadband fails?

This decides how much backup is worth setting up.

Backup options, cheapest first

  • Phone tethering — free and instant for occasional use.
  • A spare data SIM / MiFi — a low-cost standby you keep ready.
  • 4G/5G failover router — switches over automatically; best for critical use.
  • A second fixed line — most reliable where mobile signal is weak.

Frequently asked questions

How do I set up a backup internet connection?

For occasional use, your phone’s hotspot or a cheap data SIM is enough. For critical use, a router with automatic 4G/5G failover keeps you online seamlessly when your main line drops — pair it with an unlimited data SIM and test it before you rely on it.

What is internet failover?

Failover is when a router automatically switches to a backup connection — usually 4G or 5G mobile — the moment your main broadband fails, so your devices stay online without you doing anything.

Do I need backup internet if I work from home?

If being offline would cost you money or missed commitments, yes. A backup connection turns an outage from a lost day into a brief, unnoticed switch-over.

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