Forget the network and reconnect with the password, restart the router, then reset the network adapter: run netsh winsock reset and netsh int ip reset, or use Network reset in Settings. Update the Wi-Fi driver and check the router's security mode (WPA2/WPA3).

The short explanation

When you change the router or its password, Windows may keep trying the old saved profile and fail silently. Newer routers that default to WPA3 or Wi-Fi 6/6E features can also be incompatible with older Wi-Fi cards or drivers.

Resetting the network adapter clears saved profiles, IP settings and Winsock, which fixes most stubborn connection refusals.

Signs of the problem

  • “Can't connect to this network” after entering the password.
  • Other devices connect to the same Wi-Fi fine.
  • Started after changing the router or Wi-Fi password.

Common causes

  • Outdated saved Wi-Fi profile.
  • WPA3 or Wi-Fi 6 features unsupported by the adapter/driver.
  • Stuck network adapter or IP stack.
  • MAC filtering or device limits on the router.

Fixes to try, in order

  1. Forget and reconnectSettings → Network & internet → Wi-Fi → Manage known networks → Forget, then reconnect with the current password.
  2. Restart router and PCPower-cycle the router for 30 seconds and restart the PC.
  3. Disable and re-enable the adapterRun ncpa.cpl, right-click Wi-Fi → Disable, then Enable.
  4. Reset the network adapterRun the commands below, or Advanced network settings → Network reset.
  5. Update the Wi-Fi driverGet the latest from the adapter or laptop maker.
  6. Check router securitySet Wi-Fi security to WPA2/WPA3 mixed (transition mode) if older devices fail, and check MAC filtering lists.

Command

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

Run in an elevated Command Prompt, then restart Windows.

Check it's fixed: Windows connects and shows 'Connected, secured' with internet access.

Prevent it from coming back

Use WPA2/WPA3 mixed mode if you have older devices, and keep drivers updated.