This is a specific and frustrating situation: you run a speed test on your phone, and it shows 20 Mbps (or more). You run the same test on your PC and get 2–3 Mbps. Or browsing on your PC is sluggish and pages take forever to load, while your phone loads the same pages instantly. The internet is not the problem — your PC's connection to it is.
This situation is particularly common in Nigeria, where network conditions are already variable. When your phone is consistently faster than your PC on the same connection, it points to something specific in the PC's network stack.
First: Determine How Your PC Connects
Is your PC connected via Wi-Fi or via an Ethernet cable?
- If Wi-Fi: The PC's Wi-Fi adapter, its position relative to the router, and interference are all suspects
- If Ethernet: The issue is more likely the network adapter driver, the cable itself, or router settings
For Wi-Fi Connections: Distance and Interference
Your phone moves around and likely does speed tests from near the router. Your PC is in a fixed location that may be further away or obstructed. Walls, concrete construction (very common in Nigerian buildings), metal doors, and other electronics all reduce Wi-Fi signal strength. A PC that's two rooms away from the router may have a significantly weaker signal than a phone in the same room as the router.
Test it: Temporarily move your PC closer to the router (even just putting your laptop next to it) and run a speed test. If the speed is now comparable to your phone, distance and signal strength are the issue. Solutions include a Wi-Fi range extender, a powerline adapter (sends internet signal through your building's electrical wiring), or running an Ethernet cable to the PC.
For Wi-Fi Connections: Driver and Adapter Issues
Wi-Fi adapters — whether built into a motherboard or added via USB — depend on drivers to function correctly. Outdated, corrupted, or incompatible drivers can severely limit throughput even when signal strength is fine. Check this:
- Open Device Manager (right-click Start → Device Manager)
- Expand Network Adapters
- Right-click your Wi-Fi adapter and choose Update Driver
- Also check the manufacturer's website for the most recent driver — Windows Update often doesn't have the latest
After updating, restart and retest. Driver updates alone sometimes double or triple Wi-Fi speeds on a poorly configured system.
For Ethernet Connections: Check the Cable and Port
An Ethernet cable that is damaged — kinked, pinched, or has a marginal connection — can cause the link to negotiate at a lower speed (10 Mbps instead of 100 Mbps or 1 Gbps). Check the Windows notification area for the network icon — hover over it and it should show connection speed. An Ethernet connection on a modern PC should show 100 Mbps or 1 Gbps. If it shows 10 Mbps, the cable is suspect or the port is damaged.
Try a different Ethernet cable. Ethernet cables in Nigerian environments often fail from being stepped on, bent near the connectors, or having connectors that deteriorate in humidity. A new Cat5e or Cat6 cable costs very little and takes seconds to swap.
Network Adapter Power Management
Windows sometimes applies power saving to the network adapter, allowing it to reduce performance to save energy. This can dramatically reduce throughput:
- Open Device Manager → Network Adapters
- Right-click your adapter → Properties
- Go to the Power Management tab
- Uncheck "Allow the computer to turn off this device to save power"
- Also look for an Advanced tab — find "Power Saving Mode" or similar and set it to Maximum Performance
DNS Server Setting
Nigerian ISPs sometimes use slow DNS servers — the servers that translate domain names into IP addresses. Slow DNS makes every new page you visit feel slow to start loading, even if the actual download speed is fine. Switch to faster, more reliable DNS:
- Open Settings → Network & Internet → Change adapter options
- Right-click your network adapter → Properties
- Select Internet Protocol Version 4 (TCP/IPv4) → Properties
- Set preferred DNS to 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google)
- Set alternate DNS to 1.0.0.1 or 8.8.4.4
This is a quick change with no downside and often makes a noticeable improvement in how fast pages feel to load.
Background Downloads and Updates
Windows Update, OneDrive sync, antivirus updates, and other background processes can consume significant bandwidth. If your PC is slow on internet specifically in the first 15–30 minutes after startup, or at certain times of day, background downloads are a likely culprit. Check Task Manager → Performance → open Resource Monitor → Network tab to see what processes are using the most network bandwidth.
When It's a Router or ISP Issue
If you've checked all of the above and the PC is still slower than expected, try connecting your router directly to your PC via Ethernet and bypassing any switches, powerline adapters, or other network equipment. If speed improves, one of those devices is the bottleneck. If it doesn't improve, contact your ISP — the problem may be on their end, or your router may need a firmware update or replacement.
Need help sorting out your network setup? Our team can advise →