esp8266 / esp8266/Arduino

esp8266 wifi and dual band 2.4GHz/5GHz router

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Description

Dear all, thank you for all your great work!

I'm aware that esp8266 is 2.4GHz band only. I don't understand though what prevents esp8266 from connecting to a dual-band router. I'm seeing my other 2.4GHz-only devices successfully being connected to the same ssid. So why does not it work for esp8266 exactly? Is it a hardware limitation or maybe a logical issue in the esp wifi software published here?

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