@woozle Thanks. This worked.

@woozle hi these are the pics the back I spoke to tplink support they asked me to get the host router to channel 44 for both bands to use them

Hi all I had purchased this RE650 sometime back now I have airtel xstream with 200mbps unlimited speed I get the 2.4 and 5 ghz speed on my host router but the 5ghz band is not detecting on the tplink...