Start with a wired test
Connect one capable device by Ethernet, stop large downloads and run several tests. This establishes whether the broadband line itself is slow.
Check for local causes
Weak signal, old devices, busy Wi-Fi channels, background updates and an overloaded router are common causes. Restarting equipment can clear temporary problems but is not a substitute for identifying a recurring fault.
Compare times and devices
Record results on different devices and at different times. Consistent evening slowdowns may indicate congestion, while one slow device may have a local hardware or software issue.
Test your connection
Return to the Speedly speed test to measure your current connection.