The Changing Connectivity Landscape

Australia's connectivity options have expanded dramatically. Businesses in 2026 can choose from:

  • NBN (various technologies): FTTP, FTTC, FTTN, HFC, Fixed Wireless
  • Business fibre: Dedicated symmetric gigabit services
  • 4G LTE: Mature, widespread, cost-effective
  • 5G Sub-6GHz: High capacity, broad coverage
  • 5G mmWave: Ultra-fast, limited range
  • LEO Satellite: Starlink for remote locations

Head-to-Head Comparison

Performance

  • NBN Business: 250Mbps-1Gbps, consistent during business hours
  • 5G Sub-6GHz: 100-600Mbps, varies with tower load
  • 4G LTE: 20-100Mbps typical, proven reliability
  • Business Fibre: 1-10Gbps symmetric, highest consistency

Latency

  • Fixed fibre: 5-15ms — ideal for real-time applications
  • 5G: 10-30ms — suitable for most business apps
  • 4G: 20-50ms — adequate for most use cases

Cost Comparison (monthly, per site)

  • NBN 250/25: $80-120
  • Business fibre 100Mbps: $400-800
  • 5G Business SIM (100GB): $60-120
  • 5G Business SIM (unlimited): $150-250

When Fixed Broadband Wins

  • High-volume data transfers: Backups, large file sharing, video rendering
  • Consistent latency requirements: Trading platforms, VoIP-heavy environments
  • Always-on primary WAN: When cellular is reserved as backup
  • Dense office environments: Many simultaneous users

When 4G/5G Wins

  • Temporary sites: Construction, events, pop-up retail
  • Remote locations: Outside NBN footprint
  • Backup redundancy: Independent of fixed infrastructure failures
  • Mobile operations: Fleet vehicles, field teams
  • Rapid deployment: Active within hours, not weeks

The SD-WAN Answer: Use Both

SD-WAN eliminates the either/or decision. Modern deployments typically combine:

  • Primary: NBN or business fibre for daily workloads
  • Secondary: 5G for load balancing and overflow
  • Tertiary: 4G on a different carrier for true redundancy

SD-WAN intelligently routes traffic across all available paths simultaneously, providing bandwidth aggregation and seamless failover. A site with 250Mbps NBN + 200Mbps 5G effectively has 450Mbps of usable capacity with zero single points of failure.

Peplink's Multi-WAN Approach

Peplink hardware natively supports this hybrid model:

  • Balance 310X: 3 WAN ports + integrated cellular
  • MAX HD4: Four cellular modems for cellular-primary deployments
  • SpeedFusion: Bonds all connections into a single tunnel
  • InControl: Manage the entire fleet from one dashboard

Australian Carrier Considerations

  • Telstra 5G: Best regional coverage, premium pricing
  • Optus 5G: Strong metro coverage, competitive pricing
  • TPG/Vodafone 5G: Urban focus, good value for metro sites
  • Carrier diversity tip: Use Telstra + Optus SIMs for maximum resilience

Affinity MSP: Connectivity Strategy Experts

Affinity MSP designs optimal multi-WAN strategies for Australian businesses:

  • Site surveys: Test real-world signal before committing
  • Carrier-neutral advice: Right SIM for each location
  • Hybrid design: Fixed + cellular architectures
  • Ongoing monitoring: Proactive performance management

Conclusion

The best connectivity strategy for Australian businesses in 2026 isn't fixed vs cellular — it's fixed and cellular, managed intelligently by SD-WAN. This approach maximises bandwidth, eliminates downtime, and keeps costs predictable.

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