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Business Networks: Wi-Fi 6 and Professional Configuration

07 April 2026 · Quinatec

A badly configured business network can cost as much as €50,000 a year in lost productivity. Is your infrastructure up to it?

Why do you need Wi-Fi 6?

Wi-Fi 6 (802.11ax) brings significant improvements:

  • Speed: up to 9.6 Gbps (vs 3.5 Gbps on Wi-Fi 5)
  • Capacity: 4× more simultaneous devices
  • Latency: reduced by 75%
  • Efficiency: 40% better battery life
  • Security: WPA3 built in

Planning a business network:

Requirements analysis:

  1. Device inventory

    • Laptops and phones: 25 Mbps per device
    • IoT devices: 1–5 Mbps per device
    • Video conferencing: 50 Mbps per room
    • Servers: 1 Gbps minimum

  2. Coverage mapping

    • Site survey with professional tools
    • Identification of high-density areas
    • Interference analysis
    • AP planning per zone

  3. Total bandwidth

    • Rule of thumb: 20–30 Mbps per active user
    • Concurrency factor: 60–80%
    • Future growth: +25% a year
    • Redundancy: double the critical bandwidth

Recommended network architecture:

Small company (1–20 employees):

Internet (100/100 Mbps)
    ↓
Business router/firewall
    ↓
24-port managed switch
    ↓
2–3 Wi-Fi 6 access points

Medium company (21–100 employees):

Internet (500/500 Mbps + backup)
    ↓
Business firewall + UTM
    ↓
Core switch (Layer 3)
    ↓ ↓ ↓
Access switches per floor
    ↓
5–10 Wi-Fi 6 access points

Large company (100+ employees):

Dual internet (1 Gbps + backup)
    ↓
Firewall cluster + load balancer
    ↓
Redundant core switch
    ↓ ↓ ↓
Distribution switches
    ↓ ↓ ↓
Access switches + PoE++
    ↓
10–50+ Wi-Fi 6E access points

Recommended equipment by budget:

Low budget (€2,000–5,000):

  • Router: Ubiquiti Dream Machine Pro
  • Switch: Netgear GS724T
  • APs: Ubiquiti U6-Lite
  • Cabling: basic Cat6

Mid budget (€5,000–15,000):

  • Firewall: SonicWall TZ670
  • Switch: Cisco CBS350 series
  • APs: Cisco Meraki MR36
  • Cabling: certified Cat6A

High budget (€15,000+):

  • Firewall: Fortinet FortiGate
  • Switch: Cisco Catalyst 9300
  • APs: Aruba 630 series
  • Cabling: Cat6A + fibre optic

Business VLAN configuration:

VLAN 10 — Management

  • Network equipment and servers
  • IT technical access only
  • Maximum security

VLAN 20 — Employees

  • Laptops and corporate devices
  • Access to internal resources
  • Filtered web browsing

VLAN 30 — Guests

  • Temporary access without credentials
  • Internet only, no internal network
  • Limited bandwidth

VLAN 40 — IoT

  • Smart devices
  • Printers, cameras, sensors
  • Restricted access

VLAN 50 — VoIP

  • IP phones
  • Priority QoS
  • Minimum latency

Advanced network security:

1. 802.1X authentication

  • Individual credentials per device
  • Digital certificates
  • A RADIUS server for authentication

2. Network Access Control (NAC)

  • Device compliance checks
  • Automatic quarantine of threats
  • Granular policies per user

3. Monitoring and detection

  • SIEM for log analysis
  • Real-time IDS/IPS
  • Anomalous behaviour analysis

Business Quality of Service (QoS):

Priority 1 (critical):

  • VoIP: 64 kbps guaranteed
  • Video conferencing: up to 50% of bandwidth
  • Business-critical applications

Priority 2 (high):

  • Corporate email
  • ERP/CRM systems
  • Business file transfers

Priority 3 (normal):

  • General web browsing
  • Productivity applications
  • Software updates

Priority 4 (low):

  • Personal streaming
  • Social media
  • Non-critical downloads

Monitoring and maintenance:

Essential tools:

  • PRTG Network Monitor: all-round monitoring
  • SolarWinds NPM: performance analysis
  • Nagios: proactive alerting
  • Wireshark: traffic analysis

Key metrics to monitor:

  • Bandwidth utilisation per VLAN
  • Average latency per segment
  • Packet loss on critical links
  • Device temperature and CPU
  • Connected devices per AP

Maintenance plan:

Daily:

  • Check automatic alerts
  • Review security logs
  • Monitor utilisation

Weekly:

  • Back up configurations
  • Review performance reports
  • Check for offline devices

Monthly:

  • Firmware updates
  • Audit of users and permissions
  • Capacity analysis

Quarterly:

  • Coverage site survey
  • Review of security policies
  • Capacity planning

Common troubleshooting:

Speed problems:

  1. Check Wi-Fi channel utilisation
  2. Analyse RF interference
  3. Review the QoS configuration
  4. Check for duplex mismatch on switches

Connectivity problems:

  1. Check the DHCP scope
  2. Review the VLAN configuration
  3. Analyse authentication logs
  4. Check spanning tree

Migrating to Wi-Fi 6:

Phase 1 (month 1): planning

  • Detailed site survey
  • Design of the new topology
  • Equipment selection
  • Planning the maintenance windows

Phase 2 (month 2): gradual rollout

  • Upgrade of the cabled infrastructure
  • Installation of new APs zone by zone
  • Configuration and testing
  • Gradual migration of users

Phase 3 (month 3): optimisation

  • Fine-tuning the configuration
  • Performance analysis
  • User training
  • Complete documentation

Expected ROI:

  • Productivity: +15% from better connectivity
  • IT support: −30% network incidents
  • Scalability: +200% supported devices
  • Security: −80% network-related incidents

Implementation checklist:

✅ Professional site survey completed ✅ Network design validated by experts ✅ Business-grade equipment selected ✅ VLANs and security configured ✅ QoS implemented according to priorities ✅ Monitoring and alerting active ✅ Complete documentation available ✅ IT team trained on the new systems ✅ Backup and disaster recovery plan ✅ Maintenance procedures established

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