Protect the filesystem and microSD card by using a controlled shutdown, then wait for the operating system and storage activity to finish.
Use the Raspberry Pi OS desktop NetworkManager menu to set the WLAN country, join a network and verify the connection.
A current command-line workflow for Raspberry Pi OS using NetworkManager, with secure credential entry and connection checks.
Choose the safer router reservation or configure a static IPv4 profile with NetworkManager on current Raspberry Pi OS releases.