My 5ghz band range is extremely low and my Archer C20 is also not supporting tether app

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My 5ghz band range is extremely low and my Archer C20 is also not supporting tether app

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
My 5ghz band range is extremely low and my Archer C20 is also not supporting tether app
My 5ghz band range is extremely low and my Archer C20 is also not supporting tether app
2020-11-06 11:21:52 - last edited 2020-11-06 11:23:00
Model: Archer C20  
Hardware Version: V5
Firmware Version: 3.16.0 0.9.1 v6038.0 Build 190925 Rel.62876n

I just need a solution and i can't even update the firmware.. at the moment i am trying to upload the firmware an error 4503 comes

 

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