Slow, unreliable WiFi can become much more than a minor annoyance in a modern workplace. When video calls freeze, cloud-based systems lag or staff regularly lose their connection, productivity can quickly suffer.

WiFi upgrades can improve coverage, reliability and network performance across an office, shop, warehouse or other commercial property. However, upgrading your WiFi is not always as simple as purchasing a new router or placing an extender in the room with the weakest signal.

The right solution depends on the size and layout of the premises, the number of connected devices, the speed of the incoming internet service and the way the network is installed.

Understanding these factors can help you make a more informed decision before investing in new equipment.

Is Your Internet Slow, or Is Your WiFi the Problem?

WiFi and internet speed are often spoken about as though they are the same thing, but they are two different parts of the connection.

Your internet service is delivered to the premises through your provider and the available network infrastructure. Your WiFi router then distributes that connection wirelessly to devices throughout the building.

This means you can have a perfectly suitable internet plan but still experience poor WiFi because:

• The router is badly positioned
• The signal is obstructed by walls or other structures
• The premises is too large for one router
• Too many devices are competing for capacity
• The router is old or unsuitable
• The underlying data cabling is inadequate
• Interference is affecting the wireless signal

Conversely, installing an expensive new WiFi system will not compensate for an internet plan that does not provide sufficient speed for the organisation’s needs.

NBN Co notes that real-world internet performance can be influenced by several factors, including the broadband technology serving the property, the selected plan, the provider’s network and the quality of the equipment being used.

Before recommending WiFi upgrades, it therefore makes sense to identify where the bottleneck is occurring.

What Are the Signs That Your WiFi Needs an Upgrade?

Occasional variation in wireless performance is normal, but recurring problems may indicate that your existing system is no longer suitable.

Common warning signs include:

• Weak or unavailable WiFi in parts of the building
• Connections dropping out as people move between rooms
• Video calls regularly freezing or disconnecting
• Slow uploads or downloads despite having an appropriate internet plan
• Staff relying on mobile data because the WiFi is unreliable
• Printers, security cameras or other connected equipment frequently losing connection
• Performance deteriorating when multiple people are online
• A router that is several years old and no longer receives updates
• Difficulty supporting newer smart devices and business technology

A business may also require an upgrade after moving into a larger premises, renovating an existing workplace or adding more staff, connected devices or cloud-based services.

How Does the Building Affect WiFi Coverage?

WiFi signals travel using radio waves. Their strength can be affected by distance, layout and the materials through which they must pass.

Plasterboard may only have a moderate effect, while concrete, brick, metal shelving, reinforced walls and some types of glass can significantly weaken the signal. Warehouses, medical premises, retail environments and multi-storey offices can all present different coverage challenges.

Potential interference can also come from nearby wireless networks, Bluetooth devices, security equipment and other electronic systems.

Router placement is therefore important. Hiding the router inside a cabinet, placing it at floor level or locating it at one end of a large building can restrict coverage.

A professional assessment looks beyond the approximate floor area. It considers:

• Walls and building materials
• Multiple floors
• Long corridors and enclosed rooms
• Machinery and metal racking
• The location of workstations
• Areas where mobile devices are used
• Meeting rooms and customer spaces
• Outdoor work areas
• The number and type of connected devices

This helps determine whether repositioning existing equipment is sufficient or whether additional access points and cabling are required.

WiFi Extender, Mesh System or Access Points?

There are several ways to increase WiFi coverage, but they do not all provide the same level of performance.

WiFi extenders

A WiFi extender receives an existing wireless signal and rebroadcasts it into another area.

Extenders can provide a relatively inexpensive improvement in a home or small workplace where there is only one minor dead spot. However, the extender must still receive a strong signal from the main router. Placing it in an area where the original signal is already weak will usually produce disappointing results.

Some extenders can also reduce performance or require users to move between differently named networks.

Mesh WiFi systems

A mesh system uses several wireless units, generally called nodes, positioned throughout the premises. These work together to provide a more consistent network.

Mesh systems can be effective in homes, small offices and other premises where installing new cabling is difficult. They are generally easier to manage than a collection of independent extenders.

However, a wireless mesh system still depends on each node communicating effectively with the others. Thick walls, long distances and heavy network use can reduce performance.

Professionally installed wireless access points

Commercial WiFi upgrades often use multiple access points connected to the network through data cabling. Each access point provides wireless coverage within a planned area while remaining part of the same network.

This can provide more stable performance than relying entirely on wireless repeaters, particularly in larger offices, schools, warehouses and multi-level buildings.

The best option depends on the premises. A mesh system may be completely appropriate for one business, while another may require properly positioned and cabled access points.

Why Is Data Cabling Still Important?

Wireless devices still rely on wired infrastructure behind the scenes.

The router, switches and access points must communicate with each other and with the incoming internet service. Poor-quality, damaged or outdated cabling can restrict the performance of the entire network.

Installing data cabling to access points can provide a dedicated connection rather than asking each unit to receive and retransmit information wirelessly. This wired connection between network equipment is sometimes referred to as a backhaul.

Good cabling can also support fixed devices that do not need to use WiFi, such as:

• Desktop computers
• Network printers
• Security systems
• Smart televisions and displays
• Servers
• Point-of-sale equipment
• VoIP telephone systems
• Building management equipment

Connecting suitable fixed equipment by cable can reduce unnecessary demand on the wireless network and leave more capacity available for laptops, tablets and mobile phones.

WiFi upgrades should therefore consider both the visible wireless equipment and the supporting data network.

Do You Need WiFi 6, WiFi 6E or WiFi 7?

The old letter-based descriptions such as 802.11n and 802.11ac have largely been replaced by clearer generational names.

Current equipment may be labelled WiFi 6, WiFi 6E or WiFi 7. The Wi-Fi Alliance identifies WiFi 6 and WiFi 7 as current certified generations, with each generation introducing improvements in performance, capacity and the management of connected devices.

That does not mean every business automatically needs the newest and most expensive system.

The practical choice will depend on:

• The speed of the internet connection
• The number of simultaneous users
• The types of devices being connected
• Whether large files are regularly transferred
• The use of video conferencing or cloud applications
• The expected life of the installation
• Compatibility with existing devices

Older laptops, printers and smart equipment may not support the newest WiFi features, although modern routers are commonly designed to remain compatible with earlier generations.

NBN Co also points out that the wireless technology built into individual devices can influence their speed and reliability. A new router cannot make an old device perform beyond its own capabilities.

For many Sydney businesses, a well-designed WiFi 6 installation may provide more practical value than purchasing the newest equipment without considering coverage, cabling or actual usage.

Should Customers and Staff Use Separate WiFi Networks?

Businesses that offer customer or visitor WiFi should keep it separate from the network used for internal systems.

Allowing visitors onto the same network as office computers, servers, printers, payment systems or other business equipment can create an unnecessary security risk.

A guest WiFi network can provide internet access while limiting access to internal resources. Depending on the organisation, it may also be appropriate to separate different types of business equipment into their own network zones.

Australian Government cyber security guidance warns that connecting a public wireless network to other organisational networks can create an entry point through which systems or data may be targeted. Network segregation helps limit that exposure.

This is particularly relevant for businesses that handle customer records, financial information, health information or other sensitive data.

How Can You Improve WiFi Security?

A WiFi upgrade is a good opportunity to review the security of the entire network.

Basic measures include:

• Changing default router administrator details
• Using a long, unique WiFi password or passphrase
• Selecting the strongest encryption supported by the equipment
• Installing router and access-point updates
• Disabling unnecessary remote administration
• Removing accounts and devices that are no longer required
• Setting up a separate guest network
• Reviewing who has access to network settings
• Replacing equipment that no longer receives security updates

The Australian Signals Directorate recommends changing default passwords, enabling guest WiFi for visitors and using the strongest available encryption protocols when securing routers and wireless networks.

Security should not be treated as a one-off setting that is forgotten after installation. Router software, passwords, users and connected devices should be reviewed periodically.

Would a Mobile Backup Connection Help?

For some businesses, losing internet access can prevent staff from processing sales, accessing cloud software, communicating with customers or completing essential work.

A router with a compatible mobile backup service may automatically switch to a 4G or 5G connection when the primary service is unavailable. This can provide temporary continuity until the main connection is restored.

Whether it is worthwhile depends on how dependent the business is on internet access, the available mobile coverage and the amount of data required during an outage.

Mobile backup is not necessarily a replacement for the main service. Its purpose is to keep essential systems functioning during an interruption.

Businesses considering this option should confirm:

• Mobile coverage at the premises
• Data limits and excess charges
• Which systems must remain operational
• Whether the changeover is automatic
• How often the backup connection is tested
• Whether critical equipment has backup power

Planning WiFi Upgrades for Your Sydney Business

A useful WiFi upgrade should solve the actual cause of poor performance rather than simply add more equipment.

Before work begins, consider how the premises is used now and how it may change over the next few years. A growing number of laptops, security cameras, smart devices, cloud applications and automated systems can place increasing demands on the network.

Faraday Group can assist Sydney businesses with the electrical and communications infrastructure required to support a practical WiFi installation. This may include data cabling, outlet installation, equipment positioning and network infrastructure for offices, commercial premises and larger workspaces.

A properly planned system should provide reliable coverage where it is needed, appropriate capacity for connected devices and a secure foundation for the technology your business relies on every day.