Laptop or Phone Not Detecting 5 GHz Wi-Fi: Causes and Fixes
When one device can't see a 5 GHz network that others can, the problem is almost always the Wi-Fi card's capability or the channel the router picked.
Troubleshooting
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Wi-Fi, internet security, connection troubleshooting, and networking for small businesses. All written in-house.
Networking
Using Ping and Traceroute to Trace Internet Problems
Before calling your internet provider, five minutes with ping and traceroute often already shows where the problem is.
Security
Scams Posing as Internet Provider Technicians
A genuine internet provider employee never asks for an OTP code. A few simple patterns separate an official visit from a scam attempt.
Networking
What SSID, BSSID, and MAC Address Mean
One Wi-Fi name at home can come from three different transmitters. Telling the name apart from the transmitter's address explains many problems that seem mysterious.
Troubleshooting
Is Wi-Fi Draining Your Phone Battery? Causes and Fixes
Turning Wi-Fi off to save battery often makes things worse. What drains power isn't a connected Wi-Fi link but weak signal and searching that never stops.
Hardware
Weak Wi-Fi Upstairs: Why It Happens and How to Fix It
Full signal downstairs, one bar in the room upstairs. The concrete slab between them blocks far more signal than a brick wall on the same floor.
Troubleshooting
Slow Internet on a VPN: Causes and Fixes
A VPN always adds distance and work. Slowing a little is normal; losing three quarters of your speed is not, and the cause can usually be found.
For Business
Networking for Tills, Card Terminals, and QR Payments
Slow customer Wi-Fi makes people grumble. A till that can't connect makes people leave without paying. The two must not share a network.
Regulation
SIM Card Registration for Modems, 4G Routers, and IoT
The SIM inside a router never calls anyone, but its number is still recorded under someone's name. That name is who gets looked for if the connection is misused.
Security
Admin Accounts on Your ISP's Router
The label under the router shows the admin username and password. The same label is stuck on thousands of other routers, and that is not every account inside.
Networking
What MTU Is, and Why It Stops Some Websites From Loading
Google opens, chat apps work, but one banking site spins forever. A symptom that odd often comes down to one small number called MTU.
Hardware
Choosing Network Racks and Cabinets for Small Offices
Router on the filing cabinet, switch on the floor, cables dangling behind a desk, that is how most small business networks grow. A network rack is not about looks; it is about being able to manage it.
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