Every device connected to your business network—whether it's a laptop, smartphone, printer, or IoT gadget—uses network resources like bandwidth and IP addresses. While it might be tempting to allow unlimited devices to connect, especially as staff bring their own devices or add new tools, uncontrolled growth can cause slowdowns, security gaps, and management headaches. So, it's important to consider whether you should set limits or controls on how many devices access your network.
Why device limits matter for Australian small businesses
When too many devices connect without oversight, your network can become congested, leading to slower internet speeds and reduced productivity. More devices also mean a larger attack surface for cyber threats, increasing the risk of malware, ransomware, or data breaches. For businesses handling sensitive customer or employee data, this can impact compliance with privacy expectations and damage customer trust if data is compromised.
Additionally, unmanaged devices may not have the latest security patches or antivirus protection, making them vulnerable entry points. This can cause downtime if a device spreads malware or disrupts network services. For example, a retail business with 50 employees might find their Wi-Fi slowing during peak hours because dozens of personal phones, tablets, and smart devices are connected alongside workstations.
A practical example: Managing devices in a 50-person office
Consider a mid-sized Australian consultancy with around 50 staff. Initially, only company laptops and phones were connected, but over time, employees started connecting personal devices, guest devices, and smart office equipment like printers and security cameras. Without limits or controls, the network slowed, and IT staff noticed unusual traffic from an unsecured device that was later found to be infected with malware.
Partnering with a managed IT provider, they implemented a device management policy that included:
- Registering authorised devices and restricting network access to those only
- Segmenting the network to separate guest and IoT devices from core business systems
- Regularly reviewing connected devices and removing inactive or unknown ones
- Setting bandwidth priorities to ensure critical business applications run smoothly
These steps improved network performance, reduced security risks, and gave the business better visibility and control.
Checklist: What you can do to manage devices on your network
- Ask your IT provider: How do you monitor and control device connections? Do you support network segmentation or guest networks?
- Review your current network: Can you see all connected devices? Are there unknown or unauthorised devices?
- Implement device registration: Require employees to register devices before connecting, and maintain an updated inventory.
- Use network segmentation: Separate guest Wi-Fi and IoT devices from sensitive business systems.
- Set bandwidth and access policies: Prioritise critical applications and limit bandwidth for non-essential devices.
- Regularly update security: Ensure all devices have current security patches and antivirus software.
By taking these steps, you can reduce downtime, improve security, and maintain a reliable network that supports your business needs.
It's a good idea to discuss your device management strategy with a trusted managed IT services provider or IT advisor. They can assess your current setup, recommend appropriate controls, and help you implement policies that fit your business size and risk profile.