Go to More Functions > Wi-Fi Settings > Advanced Wi-Fi Settings, and select the desired frequency bandwidth in 2.4GHz Wi-Fi > Bandwidth . Click Save to save the settings.
Read moreHow do I change my Huawei router from 2.4 GHz to 5ghz?
Enter 192.168. 8.1 in your browser address bar and log in to your router’s web-based management page. Choose Wi-Fi Settings > Wi-Fi Basic Settings. Click the 2.4 GHz Wi-Fi and 5 GHz Wi-Fi switch to enable or disable the 2.4 GHz Wi-Fi and 5 GHz Wi-Fi.
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