Raspberry pi 4 can't find 5ghz wifi

Firstly, you must have a 2.4G/5G dual band routers.

1. Make sure you have set the correct country code using raspi configuration.

sudo raspi-config

select 'Localisation Options' and press 'ENTER'

select 'L4' and press 'ENTER'

select the correct country then press 'ENTER'

2. Use the 'iwlist channel' command to view the currently allowed frequency bands to be connected. These values are different for different countries.

iwlist channel

3. Check the frequency band settings of your router 5G WIFI

For this router, only '149,153,157 or 161' channel can be selected if we want to use 5G WIFI, or can't find 5G wifi in Pi 4 SSID list.

4. Then you can find the 5G wifi on your raspberry pi SSID list

TAG： Jetson 1.5inch LCD Computer Jetson Nano Spotpear ADXL354C Development Board Good low light performance Raspberry Pi Pico 2 RP2350 USB A Development Board RP2350A ADXL354C Industrial RS485 Modbus RTU Relay Day and IR Night Vision Finger Vein Scanner Module (B) Cortex M4F UART serial port EAL4+ security certification qualification UGV Rover ROS2 PT AI OpenCV Robot Car MediaPipe For Jetson Orin Nano ESP32-C6 AI Voice Chat Robot For Xiaozhi 1.8 inch AMOLED Development Board 1.8inch TouchScreen Deepseek RP2040 CAM-GC2083 ESP32 S3 AI 4.3inch (C) Industrial Development Board 4.3 inch TouchScreen Display Sensor CAN I2C RS485 DeepSeek Raspberry Pi 10.1 inch QLED Quantum Dot Display 1280x720 Capacitive Touchscreen For Computer PC/Jetson/Game OLED-LCD-HAT-A user guide ESP32-S3FH4R2 Matrix 8x8 RGB-LED-WiFi Bluetooth QST Attitude Gyro Sensor QMI8658C Arduino Python Raspberry Pi

Raspberry Pi 4B Storage module NASPi adapter board SATA HDD/SSD hard disk NAS storage server kit

TAG： Mechanical Keyboard Raspberry Pi 5 USB Audio Raspberry Pi Pico 2 RP2350 CAN Onboard XL2515 CAN Controller RP2350A nRF24L01 ESP32 Display STM32 1.5inch LCD RTL8156B USB 2.5G Ethernet RJ45 ESP32 0.85inch LCD ESP32 Ethernet Arduino Uno R4 Minima RA4M1 Tiny Mini R7FA4M1 Raspberry Pi 10.1 inch DSI LCD C Display MIPI 1280×800 Capacitive TouchScreen SpeedyBee F405 Mini FC F4 Flight Controller FPV DJI Drone 2.42inch OLED Display Raspberry Pi Chip RP2350A RP2350B RP2354A RP2354B Raspberry Pi Pico 2 CAN Analyzer Raspberry Pi 5 PCIe Gigabit Ethernet RJ45 RTL8111H M.2_M_KEY 2230/2242/2260/2280 NVMe SSD Raspberry Pi 5 UART USB Binocular Camera 2MP AR0144 Distortion Free Binocular Synchronous Frame USB 2.0 Plug and Play Raspberry Pi 4 Model B 1GB