Slow or patchy WiFi is one of the most common complaints in offices. Video calls freeze, files take ages to upload and staff blame the internet provider. Often the internet line is fine – the problem is inside the office. Here are seven common reasons, from the networking team at SKB IT Solutions, and how to fix each one.
1. Using a home router for a business
ISP-supplied or home routers are built for a few devices. When 20–50 laptops and phones connect, they overload. Fix: use business-grade access points with a central controller, designed for many users.
2. One router trying to cover the whole office
Walls, glass cabins and long floors weaken the signal, so far corners get poor speed. Fix: install multiple ceiling-mounted access points connected by cable, placed after a coverage survey.
3. Using WiFi extenders
Cheap range extenders often halve the speed and cause drops. Fix: replace them with wired access points or a proper mesh system.
4. Channel interference
In commercial buildings, dozens of neighbouring networks compete on the same channels. Fix: use the 5 GHz band, set channels correctly and choose access points that manage channels automatically.
5. Too many devices and no bandwidth control
Streaming, large downloads, cloud backups and CCTV uploads can eat all the bandwidth. Fix: a business firewall with application control and bandwidth limits.
6. Guests and staff on the same network
Visitors’ phones slow things down and create security risks. Fix: create a separate guest WiFi with its own speed limit, isolated from your office network.
7. Old cabling and switches
Even the best access point is limited by an old cable or a basic 100 Mbps switch. Fix: use Cat6 cabling and gigabit PoE switches to power and connect access points.
When to call a professional
If problems continue after restarting equipment and checking your internet speed with a cable, a WiFi survey is the fastest way to find the real cause. It shows dead zones and interference, so you only buy what you need.
Frequently asked questions
How many access points does an office need?
As a rough guide, one business access point per 1,500–2,000 sq ft or per 25–30 active users, adjusted for walls and layout. A site survey gives the exact number.
Is mesh WiFi good for offices?
Business mesh systems work well where cabling is difficult. Where possible, wired access points still give the best speed and stability.
Will upgrading my internet plan fix slow WiFi?
Only if the internet line is the bottleneck. Test speed with a laptop connected by cable; if it is fast on cable but slow on WiFi, the problem is the WiFi setup.
Facing slow or unreliable WiFi in your office in Gurgaon or Delhi NCR? Contact SKB IT Solutions or call/WhatsApp +91-9717575348.