This is the 14341st most frequent Russian word.
отключил
"Turned off" or "disconnected."
In this case, 'отключил' is used to describe disconnecting electrical power.
После того как он отключил электричество, дом стал совсем темным.
After he shut off the electricity, the house became completely dark.
Here, 'отключил' is about disabling the internet, representing a deliberate action of discontinuing a service.
Прошлой ночью я отключил интернет для спокойного сна.
Last night, I turned off the internet for a peaceful sleep.
Here, 'отключил' indicates turning off or deactivating a device (the phone).