Business Wi-Fi Upgrade Checklist

This checklist is for business owners and IT leads planning a wireless network upgrade. Use it before choosing an access-point standard, requesting quotes or approving a proposal. The most common Wi-Fi upgrade mistake is buying new hardware before diagnosing the actual problem.

Related Technology Intelligence article: Wi-Fi 7 for Business: Should You Upgrade Yet? — at /intelligence/wifi-7-business-upgrade-guide

Requirement

• □ Define the business problem — what is actually not working?
• □ Record user complaints and affected locations
• □ Identify high-demand applications and workloads
• □ Define the expected network lifespan

Current Wi-Fi

• □ Record access-point models and Wi-Fi generation
• □ Review wireless coverage — are there known gaps?
• □ Review congestion — does performance drop when the office is busy?
• □ Review firmware — is it current and supported?

Client Devices

• □ Inventory laptops — record Wi-Fi generation and 6 GHz support
• □ Inventory phones and tablets
• □ Record which devices support Wi-Fi 7 or Wi-Fi 6E
• □ When will devices be replaced? Will replacements support Wi-Fi 7?

Internet

• □ Record contracted broadband or leased-line speed
• □ Test actual WAN performance — is the internet circuit the bottleneck?
• □ Check firewall throughput — can it pass multi-gigabit traffic?

Wired Network

• □ Record switch models and port speeds
• □ Check for multi-gigabit (2.5 GbE or faster) ports
• □ Check PoE standard (PoE, PoE+, PoE++) and total PoE budget
• □ Check uplink capacity between switches

Cabling

• □ Identify cable category — Cat 5e, Cat 6 or Cat 6A
• □ Test any cable runs expected to carry 2.5 GbE or faster
• □ Do not replace working cabling before testing it
• □ Cat 5e may support 2.5GBASE-T — test before assuming it cannot

Wireless Design

• □ Review access-point positions — survey before upgrading
• □ Review wall construction and signal propagation
• □ Consider whether 6 GHz requires additional AP density
• □ Review interference sources and channel utilisation
• □ Review user density and location — open-plan vs enclosed rooms

Security

• □ Confirm WPA3 support on planned access points and key clients
• □ Verify guest network is correctly isolated — separate VLAN
• □ Confirm IoT devices are on a separate SSID and VLAN
• □ Confirm management access is protected and restricted to trusted networks
• □ Confirm firmware update process is defined and owned
• □ Review RADIUS or PSK authentication method for the environment

Decision

• □ Fix existing design problems before choosing a wireless standard
• □ Compare Wi-Fi 6, Wi-Fi 6E and Wi-Fi 7 against identified requirements
• □ Calculate total upgrade cost — access points, switches, cabling, PoE
• □ Confirm client benefit — how many devices currently support Wi-Fi 7?
• □ Confirm UK 6 GHz availability for the planned deployment type
• □ Agree replacement lifecycle and next scheduled network review

Wi-Fi 7 Makes Most Sense When

• The existing network is already due for replacement
• Wireless congestion is a genuine and measured problem
• Many modern Wi-Fi 7-capable devices are being deployed
• The network is expected to remain in service for several years
• Dense user environments exist — open-plan offices, high device counts
• Local data transfer speeds are important — creative, design or backup workloads
• Multi-gigabit broadband is available and the wired network can support it
• A new office or refurbishment is being planned

Keep Wi-Fi 6 When

• The existing network is performing well and not causing problems
• Most devices are Wi-Fi 5 or Wi-Fi 6 and will not be replaced soon
• Broadband is the actual performance bottleneck
• Coverage problems need better AP placement — not better hardware
• Existing switches only support 1 GbE and will not be replaced
• Local multi-gigabit file transfers are rare
• The current network has several years of useful life remaining