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I am borrowing a jetpack that has 2.4 and 5 but my Roku Express will only detect Wi-Fi if on 2.4. this 2.4 hardly even runs my phone here on wifi. BUT on 5 my phone will locate the Wi-Fi signal but not this express roku
The Roku Express 3930/3931 is a single-band 2.4ghz-only device. (It cannot see or use the 5ghz band).
Of the available Roku Express models, only the newer Roku Express 4k/4k+ (3940/3941) and Roku Express 3960 (HD) models are dual-band capable (able to see and use both the 2.4ghz and 5ghz bands).
Roku Community Streaming Expert Just another Roku user... I am not a Roku employee. Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102
