If all devices drop: restart and update the router, change the Wi-Fi channel, and check the ISP. If one laptop drops: disable adapter power saving, update the Wi-Fi driver from the maker, forget and rejoin the network, and run Network reset. Phones: turn off Wi-Fi assist/auto-switch and private address tests.

What's going on

Wi-Fi drops come from three places: the router and line (overheating, old firmware, ISP outages), the radio environment (distance, walls, neighbouring networks on the same channel, mesh nodes handing off badly), and the device (power saving, outdated drivers, corrupted network profile).

Checking whether other devices drop at the same time tells you which one to fix, and saves you from changing settings that don't matter.

Symptoms

  • Wi-Fi icon disconnects and reconnects repeatedly.
  • “No internet” appears for a few seconds or minutes.
  • Video calls freeze and downloads fail midway.

Common causes

  • Router overheating, outdated firmware or ISP line problems.
  • Weak signal, interference or crowded channels.
  • Adapter power-saving turning the Wi-Fi card off.
  • Outdated Wi-Fi driver or a corrupted saved network profile.

Try these fixes

  1. Check if it's every deviceIf phones and TVs drop too, restart the router and modem, update router firmware and check your ISP's status page.
  2. Improve the signalMove closer or remove obstacles; on dual-band routers try 5 GHz near the router and 2.4 GHz further away. Change the Wi-Fi channel in router settings (1, 6 or 11 on 2.4 GHz).
  3. Turn off adapter power saving (Windows)Device Manager → Network adapters → your Wi-Fi → Properties → Power Management → untick Allow the computer to turn off this device. Also set the power plan's Wireless Adapter Settings to Maximum Performance.
  4. Update the Wi-Fi driverInstall the latest driver from Intel, Realtek, MediaTek/Qualcomm or the laptop maker.
  5. Forget and rejoinSettings → Network & internet → Wi-Fi → Manage known networks → Forget, then reconnect.
  6. Reset the network stackRun the commands below, or use Settings → Network & internet → Advanced network settings → Network reset.
  7. On phonesiPhone: forget the network and toggle Private Wi-Fi Address. Android: turn off Switch to mobile data automatically / adaptive Wi-Fi to test.

Command

netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns

Run in an elevated Command Prompt, then restart Windows.

How to confirm the fix: The connection stays up for several hours of normal use, with no drops in video calls or downloads.

Avoiding it in future

Keep router firmware and Wi-Fi drivers updated, place the router centrally and high, and replace routers older than 5–6 years.