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Immediate action: Switch to a stable 5 GHz Wi‑Fi or a strong LTE/5G signal, disable power‑saving for the messenger app, and grant microphone, camera and background data permissions – these three steps resolve most intermittent session terminations within minutes.

Quick network targets: keep latency below 150 ms, jitter under 30 ms and packet loss below 1%. If a speedtest shows high variance or packet drops, reboot the modem/router and retry on mobile data. Use 5 GHz indoors when possible; 2.4 GHz tends to suffer from interference and higher retransmits.

Router and NAT adjustments: turn off SIP ALG, enable UPnP and, if available, set QoS to prioritise real‑time media for the phone’s local IP. Reserve a static DHCP lease for the device. Temporarily disable any VPN or proxy – encrypted tunnels and strict NAT types often break peer‑to‑peer media streams.

App and device tweaks: inside the messenger, enable Allow background data, clear the app cache, and update to the latest build. On the phone, exempt the app from Doze/battery optimisation and allow auto‑start. If problems persist, reset network settings and reinstall the app; if the same issue occurs on another handset, the network is the likely root.

If interruptions continue, collect evidence before contacting support: note exact timestamps, device model and OS build, attach speedtest results and a short log showing ping and jitter samples during the failure. Those artifacts speed diagnosis and point engineers to network vs. client faults. If the session drops only on one network or one device, focus troubleshooting there.

Test Your Wi‑Fi Connection

Run a 60‑second real‑time network test measuring RSSI, round‑trip time, jitter and packet loss; target values: RSSI ≥ -67 dBm, avg RTT < 120 ms, jitter < 30 ms, packet loss < 1%.

On-device commands/apps: use Termux + ping -c 60 8.8.8.8 (watch packet loss and rtt statistics), or apps such as Speedtest (Ookla), PingTools, Network Analyzer and MTR for per‑hop loss/jitter. Record min/avg/max RTT and packet loss across three 60‑second runs at different times of day.

Check RSSI (signal strength) with a Wi‑Fi scanner: -40 to -60 dBm = excellent, -61 to -67 dBm = good for realtime audio/video, -68 to -75 dBm = marginal, < -80 dBm = unreliable. If RSSI is worse than -67 dBm, move closer, remove large obstacles, or reposition the AP higher and central in the coverage area.

Scan for channel congestion. For 2.4 GHz use channels 1, 6 or 11 with 20 MHz width; avoid overlapping channels. For 5 GHz pick the least congested channel and use 40–80 MHz if range allows. Set channel manually in the router admin page after scanning; re‑test performance after each change.

Switch bands: use 5 GHz for devices within ~5–10 m of the access point to reduce interference; use 2.4 GHz for longer range. Create separate SSIDs for each band while troubleshooting to prevent unwanted band‑steering between radios.

Measure airtime and client load: if the AP serves more than ~20–30 active clients, latency and packet loss rise. Temporarily disconnect other devices and repeat tests. Enable airtime fairness and WMM (Wi‑Fi Multimedia) on the router to prioritize realtime traffic.

Eliminate local traffic noise: pause large uploads/downloads on other devices, disable cloud backups, and turn off VPNs or proxy tunnels during tests. On the mobile device disable battery saver and background sync while measuring, then recheck with normal settings to compare.

Enable QoS on the router when available: prioritize UDP/RTP or set DSCP markings for realtime media. If your router has preset VoIP/Realtime profiles, enable one and verify reduced jitter and loss in follow‑up tests.

Final validation: after adjustments run three 60‑second tests spaced 30 minutes apart. Accept configuration if median metrics meet targets (RSSI ≥ -67 dBm, RTT < 120 ms, jitter < 30 ms, packet loss < 1%). If problems persist with good Wi‑Fi metrics, test the mobile device on a different network to isolate device vs. network faults.

Restart router and Android device before testing

Power-cycle your home networking equipment and reboot your smartphone before proceeding with any connection verification.

1. Sequence for separate modem + router:

   

   1. Unplug modem power cable – wait 60 seconds to let capacitors discharge.
   2. Plug modem back in and wait until WAN/ONLINE LED is steady (typically 60–90 seconds).
   3. Unplug router power for 30–60 seconds, then plug it back in. Wait 90–120 seconds for full boot and stable LEDs.

2. Combo gateway (modem+router in one):

   1. Unplug power for 60 seconds, then reconnect. Allow up to 120 seconds for IP assignment and service restoration.

3. Mesh or multi‑node systems:

   1. Reboot the primary/base node first. If issues persist, reboot each satellite one at a time, waiting 60 seconds after each reboot.
   2. Avoid rebooting all nodes simultaneously – staggered restarts prevent reconnection storms and speed recovery.

4. Smartphone reboot procedure:

   1. Use the standard Restart option in the power menu.
   2. If the handset is unresponsive, perform a forced reboot (commonly: hold Power + Volume Down for 10–20 seconds). For devices with removable batteries, remove battery for 10 seconds.
   3. After boot, disable any temporary power‑saving or VPN profiles that could interfere with network tests.

5. What to verify after both restarts:

   • Router shows a solid WAN/Internet LED and the primary SSID is discoverable.
   • Phone connects to the intended SSID and receives a valid IP (not 169.254.x.x). Check Wi‑Fi > Advanced > IP address on the handset.
   • Run a 1–2 minute voice or video exchange and note whether packet loss or jitter drops compared with previous attempts.

6. If problems continue after power‑cycling:

   • Log into the router UI and check uptime and firmware version; update firmware if it is older than ~6 months.
   • Back up the router configuration before performing a factory reset; use reset only as a last resort.
   • For persistent intermittent issues, schedule a router reboot if uptime exceeds 30 days and monitor whether stability improves.

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