Key Takeaways:
Start with the right fibre package to improve business internet speed: Prioritise symmetrical speeds, uncapped data, and SLAs.
Upgrade hardware: Business-grade routers, managed switches, and newer devices reduce slowdowns.
Prioritise critical apps: Use QoS settings to reserve bandwidth for voice, video, and productivity tools.
Monitor usage: Identify bottlenecks and plan bandwidth upgrades with real data.
Expand WiFi coverage: Mesh systems solve signal drop-off in larger spaces.
Secure the network: Malware and unauthorised access can quietly kill speed.
Test regularly: Speed testing helps validate your fibre investment and uncover issues.
Work with the right ISP: Business-focused fibre providers offer support and reliability consumer packages don’t.
Fibre internet offers exceptional speed and reliability, but simply switching to a fibre connection doesn’t guarantee optimal performance. Many South African businesses invest in high-speed fibre only to find that their internet still lags, buffers, or underperforms during peak usage times.
The issue? Several internal and external factors influence your actual internet experience. Thankfully, there are actionable ways to fine-tune your fibre setup and enjoy faster, more stable connections for your business operations. Here’s how.
1. Start with the Right Fibre Package
Your fibre speed is only as good as your package. Ensure your business is on a plan that supports your needs, whether it’s a 50 Mbps line for a small team or a 1 Gbps line for bandwidth-heavy operations. Don’t just focus on download speed—check for symmetrical speeds, uncapped data, and Service Level Agreements (SLAs).
💡 Tip: Choose business fibre over residential fibre. Business packages usually include better support, guaranteed uptime, and symmetrical upload/download speeds.
2. Optimise Your Router and Network Equipment
Other Costs to Consider
Outdated or misconfigured hardware is a common bottleneck. To improve performance:
Use a business-grade router that supports gigabit speeds.
Position the router in a central location, free from obstructions.
Ensure it’s updated with the latest firmware.
Use wired Ethernet connections for desktops and VoIP phones to avoid WiFi congestion.
💡 Bonus Tip: Consider installing a managed switch for better internal traffic control.
3. Segment and Prioritise Network Traffic
All devices and applications compete for bandwidth. Without proper management, essential business apps may be slowed down by non-critical traffic.
Use Quality of Service (QoS) settings on your router to:
Prioritise video calls, VoIP, and cloud apps
De-prioritise media streaming or large file downloads
Reduce lag and jitter during peak usage
4. Monitor Bandwidth Usage
Install network monitoring tools to keep an eye on who or what is using the most bandwidth. This helps to:
Identify bandwidth hogs
Detect unauthorised users or malware
Plan for speed upgrades based on real usage data
Recommended Tools: PRTG Network Monitor, SolarWinds, or your router’s built-in traffic analytics.
5. Secure Your Network
Security and speed go hand-in-hand. A compromised network can be slowed down by background malware, spam traffic, or unauthorised access. Secure your business fibre by:
Setting up strong passwords and WPA3 encryption
Using a business firewall
Running regular antivirus scans
Disabling unused ports and services
6. Consider a Mesh WiFi System
If your office is large or has signal dead zones, a single router may not be enough. A mesh WiFi system spreads strong signals across multiple access points, ensuring consistent performance throughout the building.
Look for solutions that support gigabit backhaul and easy management through mobile apps.
7. Keep Devices and Software Updated
Old hardware and software can create compatibility issues and performance slowdowns. Ensure that:
Computers and phones are running the latest operating systems
Network drivers and firmware are up to date
Devices meet minimum hardware requirements for modern business apps
Outdated software can also introduce security risks that further hamper performance.
8. Partner with a Reliable ISP
The right fibre internet service provider makes a significant difference. Look for ISPs that:
Offer 24/7 support and dedicated account managers
Provide clear SLAs with uptime guarantees
Have transparent escalation procedures
Offer optional add-ons like SD-WAN or managed routers
Top South African Business Fibre ISPs: Vox, Afrihost, Cool Ideas, RSAWEB, Frogfoot, and MTN Business.
9. Upgrade Your Internal Cabling
Your office wiring might be limiting your speed. If you’re still on Cat 5 Ethernet cabling, consider upgrading to Cat 6 or Cat 6a, which supports higher speeds and longer cable runs.
Also, ensure patch panels, switches, and wall sockets are rated for gigabit or faster speeds.
10. Regularly Test and Benchmark Your Speed
Run regular speed tests during different times of the day to:
Benchmark performance against your SLA
Detect peak-time slowdowns
Compare WiFi vs Ethernet speeds
Use services like Speedtest.net or your ISP’s own testing platform. Document results to track improvements or signal issues to your provider.
Final Thoughts: How to Improve Internet Speed
Investing in fibre internet is a smart move for any business, but don’t leave performance to chance. From optimising hardware to configuring your network and choosing the right provider, small changes can result in big gains in speed and stability.
By implementing these tips, your team can work more efficiently, your apps will run smoother, and your calls will stay crystal clear—all while making the most of your fibre investment.
