Can not connect to HA by wifi 5ghz

Hello, recently I just bought a xiaomi wifi router and it can broadcast Wifi signals through both 2.4ghz and 5ghz frequency. I run HA on my pi4 connect to the 5ghz frequency, however if my other devices use the same 5ghz signal then it can not conect to HA, only when using the 2.4ghz. Is there a way around this ?

Your router is not setup correctly . You need to check it’s settings carefully

This is not related to HA