Internet & Wi-Fi

A captive portal is the login or agreement page that appears on public Wi-Fi before you get internet. Learn how it works and how to open it if it does not appear.

Wi-Fi that disconnects during downloads is usually an overloaded or overheating router, power-saving on the adapter, or too many connections. Learn how to fix it.

A Wi-Fi extender with no internet usually lost its link to the main router, is placed too far, or needs reconfiguring. Learn how to fix an extender with no connection.

2.4GHz and 5GHz are two Wi-Fi bands: 2.4GHz reaches farther through walls but is slower, while 5GHz is faster over shorter range. Learn which band to use and when.

Slow upload speed is often normal on cable and DSL plans that give much less upload than download. Learn the real causes and how to check and improve your upload.

Your Wi-Fi keeps switching networks because of auto-join, multiple saved networks, a weak signal or band steering. Learn how to stop it on iPhone, Android and laptops.

Double NAT means two routers on your network both translate addresses, putting your devices behind two layers. Learn what it affects and how to fix double NAT.

A fast speed test but slow browsing usually means high latency, slow DNS or bufferbloat, not low bandwidth. Learn why pages load slowly and how to fix it.

If Wi-Fi works but Ethernet does not, the cause is usually a bad cable, dead port, disabled adapter or driver issue. Learn how to test and fix a wired connection.

Obtaining IP address means your device is asking the router for a network address so it can connect. Learn why it can get stuck and how to fix it on Android and Windows.

When only YouTube is slow, the usual causes are ISP video throttling, a congested nearby cache, DNS routing or app cache. Learn how to test and fix YouTube buffering.

Your internet drops during calls because a non-VoLTE phone call suspends mobile data, or a DSL line is missing its phone filter. Learn how to fix both cases.

DNS server not responding means your device cannot reach the service that turns website names into addresses. Learn the causes and how to fix it on Windows and Mac.

A Weak Security warning means your Wi-Fi uses older encryption like WPA or TKIP instead of WPA2 or WPA3. Learn what it means and how to fix it safely.

High ping on Wi-Fi usually comes from interference, distance, network congestion or heavy downloads. Learn what raises latency and how to lower your ping.

An IP configuration failure means your device could not get a valid IP address from the router. Learn the common causes and how to fix it on Windows, Mac and Android.

Your Wi-Fi keeps asking for the password when the saved password no longer matches the router or the network profile is corrupt. Here is how to check and fix it.

Internet failing at the same time each day usually points to a scheduled reboot, congestion, a timed setting, or provider maintenance. Here is how to find it.

Resetting network settings erases saved Wi-Fi, Bluetooth, and VPN data and restores network defaults. Here is exactly what it clears and when to use it.

If Wi-Fi works on your phone but not your laptop, the laptop is the problem, not the network. Here are the common causes and step-by-step fixes.

5 GHz Wi-Fi disappears mainly due to range limits, DFS channel radar checks, driver issues, or router settings. Here is why it happens and how to keep it stable.

A router that keeps losing internet often points to a weak line, overheating, old firmware, or a fault at your provider. Here is how to find and fix the cause.

"Limited connection" on Wi-Fi means your device joined the network but did not get a valid IP address or internet access. Here is why and how to fix it.

Wi-Fi that drops every few minutes usually points to signal interference, power-saving settings, or old drivers. Here are the causes and fixes for each platform.

Your 5GHz WiFi is often slower than 2.4GHz at a distance because 5GHz signals fade through walls. Learn why and how to get faster 5GHz speeds.

A modem connects your home to your internet provider, while a router shares that connection to your devices over WiFi and cables. Here is the difference.

To change your DNS to Cloudflare on Android, use Private DNS with one.one.one.one, or set 1.1.1.1 on your WiFi. Step by step for phones and tablets.

Your mesh WiFi keeps dropping to the extender node when devices cling to a weaker satellite or the backhaul is unstable. Here is why and how to fix it.

A good ping for online gaming is under 50ms, and under 20ms is excellent. Learn what ping means, what counts as good or bad, and how to lower it.

To find out who is stealing your WiFi, check the connected devices list in your router settings and match each one to a device you own. Here is how.

Your router needs restarting every few days usually from overheating, memory leaks, firmware bugs, or too many devices. Here is why and how to fix it.

To split 2.4GHz and 5GHz into separate network names, open your router settings, turn off band steering, and give each band its own WiFi name. Here is how.

The best WiFi channel in an apartment building is 1, 6, or 11 on 2.4GHz, and any clear 5GHz channel. Learn how to find the least crowded channel.

To tell if your ISP is throttling your connection, compare normal speed tests to speeds with a VPN, and test specific sites or times. Here is how to check.

Bridge mode turns off a router NAT and routing so it passes the connection through to another router, avoiding a double network. Here is what it does.

The WPS button on a router lets devices join WiFi without a password by pressing it. Here is what it does, how to use it, and why to disable it for security.

Fast WiFi but Zoom keeps freezing? Video calls need low latency, low jitter, and no packet loss, not just speed. See the real causes and fixes here.

Phone connects to WiFi but says no internet? The router reached your phone but cannot reach the web. Common causes and step by step fixes explained.

A self assigned IP address on Mac means it could not get a valid address from DHCP, so it fell back to 169.254.x.x. Here is what it means and how to fix it.

Router light blinking orange? On most routers it means no internet or a WAN sync problem, sometimes a firmware update. Here is what it means and how to fix it.

WiFi drops when the microwave is on because ovens leak energy near 2.4 GHz and interfere with WiFi. Switch to 5 GHz or move the router. Full fix inside.

Guest WiFi not working? It is often disabled, needs a reboot, or is blocked by isolation or band settings. Here are the real causes and how to fix it.

Smart TV keeps losing WiFi? Usually a weak signal, interference, or outdated firmware. Learn why it happens and how to fix the drops for good, step by step.

Band steering means your router uses one WiFi name for 2.4 and 5 GHz and steers each device to the best band. Here is what it does and when to turn it off.

A VPN slows your internet because it encrypts data and routes it through a distant server. Here is why it happens and how to get faster VPN speeds.

WiFi works downstairs but not upstairs because floors and walls weaken the signal. Learn why it happens and how to fix upstairs coverage, step by step.

Phone keeps switching to mobile data? Features like WiFi Assist drop weak WiFi for cellular. Here is why it happens and how to stop it on iPhone and Android.

"Connected without internet" means your device joined the Wi-Fi but the router cannot reach the web. Here is what causes it and how to fix it fast.

Wi-Fi connected but no internet usually means a DNS glitch, an ISP outage, or a stuck router. Here are the real causes and step-by-step fixes.

When the internet is slow on just one device, the cause is usually that device, not your network. Learn the common reasons and how to speed it back up.