First, get a baseline: run a speed test wired (next to the router) and again on Wi-Fi. Comparing the two instantly tells you whether the problem is your Wi-Fi or the connection itself.
| Likely cause | Fix |
|---|---|
| Wi-Fi distance / interference | Move closer or relocate the router; use 5 GHz. |
| Old or overloaded router | Restart it; update firmware; replace if 5+ years old. |
| Too many devices | Disconnect idle devices; use QoS to prioritise. |
| Background downloads/updates | Pause cloud backups, game/OS updates. |
| Peak-time congestion | Test at different hours; common 7–11pm. |
| Wrong plan for your usage | Compare your result to what you pay for. |
| ISP throttling or an outage | Test wired; contact your ISP with results. |
| Device limitations / VPN | Test another device; toggle the VPN off. |
For step-by-step fixes, see how to improve your internet speed and Wi-Fi vs Ethernet.
Frequently asked questions
How do I find out why my internet is slow?
Start with a wired speed test next to the router. If wired is fast but Wi-Fi is slow, it is a Wi-Fi issue. If wired is also slow, it is your plan, line, or ISP.
Does restarting the router actually help?
Often yes — it clears memory and re-establishes the connection, fixing many temporary slowdowns. It is the first thing to try.
Can my ISP slow down my internet?
Yes — through throttling, congestion, or an outage. A wired test well below your plan speed, especially at certain times, can indicate an ISP issue worth reporting.
Ready to check your connection?
Run a free speed test