Network & Internet Diagnostics

Wi-Fi slow, pages not loading, or the signal weak in one room? Network & Internet Diagnostics checks this phone: Wi-Fi or mobile data, signal, internet reachability, DNS, ping, gateway, and speed.

No account. Values come from the device or a live test, not from sample numbers.

WHAT YOU CAN CHECK

• Network status. Home shows online or offline, Wi-Fi or mobile data, the band when Android provides it (2.4 GHz or 5 GHz), signal grade, and the last check. Tap the card to test again.

• Signal, latency, speed, and VPN tiles show the latest grade, ping, throughput, and VPN state.

• Full network diagnostic. One run follows the path: network link, internet access, DNS, gateway, latency, signal, and VPN. Open any result for detail.

• Internet test. Checks that this phone can reach the internet, and how long it took, when Wi-Fi looks connected but a site still fails.

• Ping test. Repeated pings with minimum, average, and maximum. Under 40 ms is Good, 40–100 ms is Fair, over 100 ms is High. High latency makes calls, games, and remote desktop lag even when a speed test looks fine.

• Speed test. Approximate download, upload, and idle latency. Sizes are Quick, Standard, and Full. On mobile data, a warning can appear before a larger run. Results are estimates and vary with congestion, distance, and time of day.

• DNS lookup. Resolves a real hostname, times it, and lists the DNS servers on this connection. This is the usual cause when you are "online" but websites will not open.

• Wi-Fi details. RSSI, frequency, channel, and link speed where Android allows them. Location permission is required for the network name and scan details. Decline it and internet, DNS, ping, speed, and IP checks still run.

• Live Wi-Fi signal. Watch the reading, pause or resume, and see Excellent, Good, Fair, or Weak. Stronger than about -55 dBm is Excellent. Weaker than about -72 dBm is Weak. Compare rooms before you move a router.

• IP and gateway. Local IPv4, local IPv6, router address, and public IP, each with copy. Public IP is the address sites see. It can differ from the address printed on the router.

• Mobile network. With phone-state access, see the type Android reports (such as LTE or 5G) and the cellular signal level. Other checks work if you deny it.

• VPN. Shows whether a VPN is active. The app does not connect, disconnect, or configure one.

• Diagnostic history. Up to 50 reports stay on this phone: connection, internet, signal, latency, DNS, gateway, VPN, speed, and an overall line. Copy a report, share it, turn saving off, or clear history in Settings.

USE IT WHEN

You want to know if the internet is actually up. You are comparing rooms for Wi-Fi signal. You need a public IP, local IP, DNS server, or gateway for a support call. You want the mobile network type, and a warning, before a speed test.

Light, dark, and system themes are included, with reduced motion.

PRIVACY

Settings and reports stay on the device. Traffic is only the check you start: internet, DNS, ping, gateway, public IP, and speed. No contacts, messages, photos, or files. Location is requested only so Android can show the Wi-Fi name. Phone-state access is only for mobile network type and cellular signal.

A router, mesh node, VPN, firewall, carrier, or sign-in page can change a result. Some Wi-Fi fields stay hidden on newer Android versions. A passed internet test does not mean every app will load. A failed test does not, on its own, name the fault.

Offline on Home: turn Wi-Fi or mobile data on, then tap the status card. Connected, but the internet test fails: check DNS and the gateway. Signal Weak: move closer to the router or try the other band. Latency High while speed looks fine: the link is up and round-trip time is the problem.

Network & Internet Diagnostics is for network troubleshooting and connectivity testing on Android 7.0 and later. Check Wi-Fi, internet, DNS, IP, ping, and speed in one place, then keep the diagnostic on your phone.