NBN Delivers Steady Performance, but some Consumers Missing Out on Full Plan Speeds

Why It Matters

Consistent delivery of promised broadband speeds is critical for consumer confidence and for businesses relying on high‑capacity connectivity; persistent underperformance signals infrastructure gaps and potential churn.

Key Takeaways

• Average NBN speeds hit 98.5% of plan during peak hours
• Home Fast plan averages 493.7 Mbps, 6.3% underperform
• FTTN underperformance at 11.8%, classified as impaired
• Router limitations cause high‑speed plan shortfalls
• Consumers urged to verify eligibility for fibre upgrades

Pulse Analysis

The ACCC’s December 2025 data underscores a generally healthy NBN ecosystem, with average download speeds hovering near 99% of advertised rates during the busiest evening window. This performance reflects ongoing network upgrades and the effectiveness of wholesale speed caps that align with consumer plans. However, the marginal dip from earlier reports highlights that maintaining peak‑hour reliability remains a challenge, especially as data‑intensive applications like remote work, streaming, and cloud services proliferate across Australian households.

The rollout of the NBN Home Fast plan, boosting the top tier to 500 Mbps down and 50 Mbps up, illustrates the market’s push toward ultra‑fast residential broadband. While the plan’s average speed of 493.7 Mbps demonstrates that the infrastructure can support such capacity, the 6.3% underperformance rate reveals a bottleneck at the customer premises. Legacy routers, sub‑par cabling, and misconfigured Wi‑Fi settings often cap real‑world speeds well below the wholesale ceiling, prompting the ACCC to advise shoppers to engage retailers for equipment audits. This equipment‑centric issue shifts some responsibility from the network operator to end‑users and their service providers.

FTTN connections continue to lag, with nearly one‑tenth of services failing to meet the 100 Mbps ceiling and being labeled as impaired. Because FTTN cannot access the newer 500 Mbps tier, affected households face a stark speed ceiling unless they transition to fibre‑to‑the‑premises (FTTP) or fibre‑to‑the‑curb (FTTC). The regulator’s call for transparent retailer communication aims to reduce consumer frustration and potential churn, while also nudging the market toward broader fibre deployment—a critical step for Australia’s digital competitiveness.