Stay Online, Stay Productive: Why Reliable Internet—and a Backup—Is Essential for Today’s Business
- Jack Royle
- Jul 1
- 2 min read

In today’s business world, downtime isn’t just inconvenient—it’s expensive. From VoIP phones and Microsoft 365 to cloud-based CRMs and client video calls, modern SMEs depend on the internet more than ever. Which means relying on a single internet connection is like driving without a spare tyre: fine until it isn’t.
Let’s explore the types of internet connections available and why having a resilient, failover-ready setup is critical for continuity.
💡 The Problem with a Single Internet Connection
Even with the best ISPs, connections can—and do—go down. This could be due to:
Local outages (roadworks, cabinet faults)
ISP infrastructure issues
Power cuts at local exchanges
Router or equipment failure
If your business grinds to a halt when the internet drops, so do sales, communication, and service.
🧠 The Four Main Options
🥉 1. Single Line (FTTC or FTTP)
This is the most basic setup. One internet line, one point of failure.
✅ Cost-effective
❌ No resilience—if it drops, you’re offline
❌ Not suitable for cloud-reliant or VoIP-heavy businesses
🥈 2. Fixed + Fixed Failover
Here, you have two separate broadband connections—ideally from different ISPs—plugged into a dual-WAN router that can automatically failover.
✅ Strong resilience against most outages
✅ Consistent speed
✅ Good for VoIP, Microsoft 365, Teams, CRMs
❌ Higher ongoing costs (two fixed lines)
🥈 3. Fixed + Mobile Failover (4G/5G)
One fixed line, backed up by a mobile data router. The mobile connection kicks in automatically if the main line drops.
✅ Cost-effective resilience
✅ Flexible—works even if there’s a local infrastructure outage
✅ Quick to deploy
❌ Mobile signal can vary
❌ Speeds and latency may not suit all workloads
Many businesses start here—it’s a smart middle ground, and a great option where a second fixed line isn’t available or budget is tight.
🥇 4. Ethernet Leased Line
The gold standard. A business-grade, dedicated fibre line with symmetrical speeds and robust service guarantees.
✅ Up to 1Gbps upload and download
✅ Guaranteed bandwidth (no contention)
✅ SLAs with 4–6 hour fix times
✅ Extremely reliable
❌ Higher cost, but often worth it for critical operations
Often combined with a 4G/5G failover for complete resilience.
🛠️ Hardware That Makes It Work
Whatever setup you choose, you’ll need the right router. Dual-WAN routers like the Ubiquiti Dream Machine Pro, DrayTek Vigor, or Cisco Meraki can detect failures and automatically switch to the backup line—seamlessly. Add in:
POE switches for neat, powered access points
UPS backup for routers and switches
External 4G/5G antennas if signal is weak
✅ Summary: Four Tiers of Connectivity
Tier | Description | Ideal For |
🥉 Single FTTC/FTTP Line | Basic, no resilience | Very small teams, low reliance on cloud |
🥈 Fixed + Second Fixed Line | Strong resilience | SMEs needing guaranteed uptime |
🥈 Fixed + Mobile (4G/5G) Failover | Cost-effective backup | Most SMEs using VoIP or cloud tools |
🥇 Leased Line + Mobile Failover | Enterprise-grade | Critical operations, no tolerance for downtime |
Final Word
If your business can’t afford to be offline, it can’t afford to rely on a single connection. Whether you’re just starting out or ready to upgrade to a leased line, there’s a solution to fit your needs—and your budget.
We can help assess what’s available at your location and design the right setup to keep your business connected, always.
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