The internet is slow in the evening, and the list of connected devices shows names you don't recognise. Here's how to find out who's connected to your Wi-Fi, why strangers on your network are dangerous and how to cut off access so they don't come back the next day.
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Your router offers WEP, WPA2, WPA3 and several other baffling modes. Here's which encryption really protects your network, how to create a Wi-Fi password that's both strong and convenient, and what to do if some devices won't connect after you switch on WPA3.
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Every guest, neighbour and tradesperson who's visited in recent years knows your home Wi-Fi password. A guest network solves this: guests get internet, but no access to your devices. Here's who needs one and how to set it up properly.
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A smart camera, plug or robot vacuum is a computer on your network too — just one that's often never updated and has a weak password. Here's how smart home devices become a vulnerability, the real risks involved and how to set everything up safely.
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TV over the internet is convenient but temperamental: the picture breaks into blocks, channels freeze at the best moment, and after buying a new router the TV disappears altogether. Here's how IPTV works and how to set up your network so it runs reliably.
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Video plays smoothly on your phone, yet on the big TV in the same room there's an endless loading spinner. Here's why a Smart TV lags and buffers video, how to tell whether the internet or the TV itself is to blame, and what really helps.
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VPNs are advertised as all-round protection, but many people use them for the wrong things — and end up with slow internet, broken banking apps and sometimes data leaking through a free service. Here's what a VPN really gives you and when you need one.
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Messengers work, but the browser says the site can't be found. Often DNS is to blame — the internet's "phone book". Here's how it works, why it breaks, when it's worth changing your DNS server and why DNS hijacking on a router is one of the most dangerous kinds of hack.
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Windows reports an IP address conflict, the internet comes and goes, and the network printer suddenly can't be reached. Here's where address conflicts come from, why two routers are most often to blame, and how to tidy up your network so the problem doesn't come back.
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You can't run a cable, Wi-Fi doesn't reach — and that's when adapters that carry the internet over ordinary wiring come to the rescue. Here's how they work, how much speed they really give, why they fly in one flat and crawl in another, and how to connect them properly.
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Wireless is convenient, but not always best. Here's where cable still beats Wi-Fi, which devices are worth wiring and which are fine wirelessly, and how to run cable so it doesn't spoil your décor.
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In a small office the network often grows haphazardly: a home router, a couple of extension cables and Wi-Fi through a wall. While it works nobody thinks about it — and when it breaks the whole office stops. Here's how to build a proper network for a 10-person office.
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Guests choose cafés partly by their Wi-Fi and mention it in reviews. For the venue, it matters that the guest network doesn't get in the way of the till and terminals. Here's how to set up reliable Wi-Fi for a café or restaurant and which mistakes to avoid.
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For visitors to Tbilisi, Wi-Fi is one of the main criteria when choosing where to stay, and complaints about internet lower a Booking or Airbnb rating faster than many other shortcomings. Here's how to get stable internet in every room of a guesthouse.
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A mobile 4G or 5G router helps where there's no fibre and acts as a backup where there is. But its speed depends heavily on where it's placed, the operator and the antenna. Here's when mobile internet really fits and how to get the most out of it.
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Where there's neither fibre nor a decent mobile signal, satellite internet has become a real option. But the result depends heavily on the view of the sky, where it's installed and how the internet is spread around the house. Here's when satellite makes sense and what matters during installation.
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Remote access lets you work on your office computer from home or help your parents with their PC without leaving your flat. But badly configured access is one of the most common causes of break-ins and encrypted data. Here are the methods and how to make them safe.
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The value of CCTV cameras is being able to check them from your phone anywhere in the world. But often the feed won't open, lags — or, on the contrary, is open to strangers. Here's how to set up remote access to cameras at home, in a shop or in an office properly.
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A printer you can send documents to from any computer or phone is convenient — while it works. But it often "gets lost" on the network, shows as offline or prints from only one PC. Here's why that happens and how to connect a network printer reliably.
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Video calls have become part of work and of keeping in touch with family, and poor quality is more irritating than slow-loading websites. Often the problem exists even with "fast" internet. Here's what video call quality depends on and what affects it.
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A familiar scene: someone starts downloading a game or uploading photos to the cloud, and the internet becomes unbearable for everyone at home — game ping skyrockets, calls cut out, pages take forever. This is called bufferbloat, and it can be fixed. Here's how.
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The router is the door between your devices and the internet. If an outsider controls it, they can redirect you to fake websites, watch your traffic and use your connection for attacks. Here are the signs of a break-in, the causes and how to regain control.
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A new provider promises more speed for less money, but the switch often comes with days offline, missing Wi-Fi and cameras that stop working. Here's what to check before signing and how to change provider without nasty surprises.
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PoE carries both data and power over a single network cable. It lets you put cameras and access points on ceilings and outdoors without sockets nearby. But with the wrong equipment, PoE becomes a source of strange faults and even damage. Here's how it works.
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