"Forget this network" deletes the saved password and settings for a Wi-Fi network. It is one of the most useful fixes when a device won't reconnect after a router change, keeps joining the wrong network, or shows connected but no internet. Here is how to do it on each device, and how to reconnect afterwards.
Have the Wi-Fi password ready before you start: you will need to type it again.
From Quick Settings (fastest):
From Settings (also works for networks out of range):
Open Settings > Network & Internet > Wi-Fi > Manage known networks, select the network and choose Forget.
Useful when Settings won't open or you want to remove many profiles. Open Command Prompt or Terminal and list the saved networks:
netsh wlan show profiles
Then delete one by name (keep the quotes if the name has spaces):
netsh wlan delete profile name="Network Name"
Windows replies that the profile was deleted from the interface. Some profiles pushed by a workplace can only be removed by the administrator.
On macOS Ventura and later:
On older macOS versions the list is in System Preferences > Network > Wi-Fi > Advanced: select the network and click the minus button.
To remove a network that is out of range, tap Edit at the top of the Wi-Fi page, authenticate, and delete it from the known networks list.
Menu names vary by maker and Android version. The two most common:
Google Pixel and near-stock Android:
For out-of-range networks: Settings > Network & internet > Internet > Saved networks.
Samsung Galaxy (One UI):
If your phone looks different, search Settings for "saved networks".
If the network doesn't appear at all, the router may be hiding its name or broadcasting only on a band your device doesn't support.
The device deletes the saved password and settings for that network and stops joining it automatically. Nothing else is removed. To use it again you pick the network and type the password.
It fixes connections that fail after the router's password or security type changed, stops your device joining a network you no longer want, and gives a clean start when a network says connected but has no internet.
Yes. On Windows use Manage known networks or netsh; on Android the Saved networks list; on Mac the Known Networks list. On iPhone, the Edit button on the Wi-Fi page shows known networks.
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