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Failover Internet Solutions: Never Go Offline

Redundancy for the modern world. How to set up an automatic backup for your fibre connection.

Failover Internet Solutions: The Art of Redundancy

Executive Summary

Fibre is incredibly reliable, but it is not invincible. Construction crews, cable theft, and even "Acts of God" can result in a physical break that takes hours or days to repair. For a business or a serious remote worker, this downtime is unacceptable. A Failover Solution is a secondary internet connection that automatically takes over when your primary fibre line fails. This guide explores the different ways to build a "bulletproof" network.

How Automatic Failover Works

Failover requires a router that supports "Dual WAN." You plug your fibre into Port 1 and your backup (e.g., LTE) into Port 2. The router constantly "pings" the internet. If Port 1 stops responding, it instantly switches all traffic to Port 2.

The Best Failover Technologies

1. Fixed LTE / 5G

The most common and affordable failover. Many business routers have a built-in SIM slot for this purpose.

  • Pros: Low monthly cost (you only pay for what you use).
  • Cons: Can be slow if the local tower is congested.

2. Fixed Wireless (Microwave)

A professional-grade wireless link to a nearby tower.

  • Pros: Very stable, low latency, high speed.
  • Cons: Requires an antenna on your roof; more expensive than LTE.

3. A Second Fibre Line (Different FNO)

The ultimate redundancy. If you have Vumatel, you install a second line from Openserve.

  • Pros: Full speed even during failover.
  • Cons: Only works if two different FNOs cover your building.

Comparison: Failover Options

FeatureLTE BackupFixed WirelessSecond Fibre Line
Setup CostLowMediumHigh
Monthly CostLow (Pay-as-you-use)MediumHigh
ReliabilityMediumHighVery High
Automatic?YesYesYes

Practical Checklist: Building Your Backup

  • Get a Dual-WAN Router: Look for brands like MikroTik, Ubiquiti, or DrayTek.
  • Test the Switchover: Don't wait for a crisis. Unplug your fibre and see if the backup kicks in within 10 seconds.
  • Monitor Data Usage: Ensure your backup LTE plan has enough data to last a full business day.
  • Prioritize Traffic: Configure your router to only allow "Critical" traffic (Email, VoIP) over the backup to save data.

Next Steps

Ensure your business never stops.

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Frequently Asked Questions

Do I need two separate ISPs for failover?

It's recommended. If you use the same ISP for both fibre and LTE, and their entire network goes down, your backup will fail too.

Can I use my phone as a failover?

Yes, via 'USB Tethering' if your router supports it, but it's a manual process and not suitable for a professional office.

What is 'SD-WAN'?

It's an advanced technology that can use both your fibre and your backup *at the same time* to increase speed and provide seamless failover.

Next Steps

Ready to put this knowledge into practice? Use our tools to find the best fibre connection for your home or office.

FC
FibreCompass Editorial
Updated Feb 2026

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