no dhcp was found.

For a Windows home device that shows Wi‑Fi connected but no internet and reports no DHCP was found, use this order:

1. Check whether the PC is actually getting an IP address
   • Open Settings > Network & internet.
   • Select the Wi‑Fi connection and check its status.
   • If it is connected to Wi‑Fi but has no usable IP configuration, the issue is likely DHCP-related.
2. Restart the home modem/router
   • Unplug the router power.
   • Unplug the modem power.
   • Wait at least 30 seconds.
   • Plug the modem back in and wait for its lights to stabilize.
   • Plug the router back in and wait a few minutes.
   • Reconnect the affected laptop.
   • This is especially useful if devices that have been away from the network for a day or more fail when reconnecting.
3. Reset the network stack on the affected Windows device
   • Open Command Prompt as administrator.
   • Run these commands in order:

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

   • Restart the PC after running them.
4. Verify basic client-side DHCP conditions
   • Make sure the network adapter is enabled.
   • Make sure the correct network adapter driver is installed and updated.
   • Check that the DHCP Client service is running. From a command prompt, run:

          net start
     

     and confirm DHCP Client appears.
   • Check that no firewall on the client is blocking UDP ports 67 and 68.
5. If the laptop was moved between networks or subnets
   • Run:

          ipconfig /release
          ipconfig /renew
     

   • This is the documented workaround when a DHCP client fails to obtain a valid address after moving to a different subnet.
6. Narrow down whether the problem is the PC or the home network
   • Try connecting the laptop to a different Wi‑Fi network or hotspot.
   • If it works there, the issue is likely with the home router’s DHCP handling.
   • If it fails on multiple networks, focus on the Windows device network stack, adapter, or driver.
7. Check simple physical and local causes
   • If using Ethernet at any point, try another cable.
   • If available, try Wi‑Fi instead of Ethernet to confirm whether only one connection type is affected.

If multiple devices that have been offline for a day or more show the same behavior only on the same home network, the strongest next step is restarting the modem/router first, then renewing the IP on each affected device.

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