Internet Slow Throughout the House? How to Diagnose It
If the problem affects every device (not just one specific one), the cause is in the router or your connection, not an individual machine.
If the problem affects every device (not just one specific one), the cause is in the router or your connection, not an individual machine.
1. Restart the router (the simplest step, and often enough)
Unplug it, wait 30 seconds, plug it back in. This resolves a surprisingly large share of cases, without needing any deeper diagnosis.
2. Rule out your provider
Check whether there's a reported outage in your area (provider's website or app) — sometimes the problem is external, not your equipment.
3. Check how many devices are connected
Check what's using your network — too many devices downloading at once (automatic updates, streaming on several screens) saturates the bandwidth available between everyone.
4. Measure your real speed
Compare the measured speed against what you're paying for — if there's a noticeable, persistent gap, contact your provider with that specific data in hand.
5. Check the router's location
A badly placed router can feel like "slow internet" when it's actually a weak Wi-Fi signal problem, not the connection itself.
Tip: connect a device via Ethernet cable directly to the router to rule out whether the problem is the connection itself or specifically the Wi-Fi.
Frequently asked questions
How do I know if the problem is my router or my provider?
Check whether your provider has a reported outage in your area, and connect a device by cable directly to the router — if it's still slow even wired, it's more likely an external problem or the router itself.
Why does restarting the router help so often?
It frees up accumulated memory and resets connections that may have become unstable over continuous use — a simple fix that resolves a surprisingly large share of cases.