I hid my Wifi, but I can't remember the name, that is, the Wifi ID, and now I can't find it.

The best way is to check the SSID(wifi name) and password on the router settings page of the computer connected through the network cable.

If you don't want to hide wifi, you can turn on the SSID broadcast and set it in the router to find it.

If you want to connect wifi and then set it, you need to reset the router (set the router to the factory setting, usually you need to poke a hole with a toothpick until all the lights on the router are on, or there is a button to reset it directly), and then connect wifi with your mobile phone when the router restarts (the name is the product name, which is generally not encrypted). Enter 192. 168. 1 or192.168.0.1in the browser, and then operate step by step.