Problems & fixes
Find the cause. Take the next useful step. Practical guides to understand your options and choose your next step.
Connected to Wi-Fi, but no internet
Find which connection has failed before changing the router.
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Why just one room is slow
Use a doorway test to separate coverage from a slow device.
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When the internet slows down in the evening
Compare quiet and busy periods before blaming the provider.
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Tracking down frequent disconnections
Record what drops, for how long and on which devices.
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When only one device is slow
Keep the room and network unchanged while comparing devices.
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How to run a useful speed test
Measure a connection under known conditions, then test the room you use.
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Reducing gaming lag at home
Look for delay and loss before shopping for more megabits.
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Is it DNS or the connection?
Test name lookup separately from the path to the internet.
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Recognising and fixing double NAT
Draw the two routers before changing either one.
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Getting back online after a power cut
Let the upstream connection settle before restarting everything again.
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When your Wi-Fi network disappears
Check whether the radio is missing or the internet has stopped.
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A Wi-Fi printer that keeps going offline
Check the printer's own connection before reinstalling it again.
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Why a phone stays on the wrong mesh node
Judge the connection by its behaviour before judging the node name.
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Fixing buffering on the living-room TV
Test the television's path, not just the phone beside it.
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Restart or factory reset?
Know which settings you will keep before pressing a button.
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