@Stanl3y Hi, My problem was solved. I had to upgrade router's driver BR. Gábor

@Solla-topee Hi thank you quick answer. The wifi router is not an ISP device. It was bought in a retail store. It is "2nd" wifi router in house. This is wifi router receives the input signal from an...

@Solla-topee Hi, Hardware is V4 ("Firmware Version:3.16.0 0.9.1 v600c.0 Build 190815 Rel.34526n Hardware Version:Archer C5 v4 00000004") Yes I used the reboot button. (I saved the change - "save"...

Hi all, I have tp-link archer c5 ac1200 wifi router. I would like to unable 5 ghz wireless radio If I turn it off in the wireless setting menu. it automatically turns on the 5 ghz band within a...