To get the 6.1.7 licensed mode working on your Nanostation, Rocket, or PowerBeam M5 device, follow these steps: Xw 6.1.7 licensed (cs) - Ubiquiti Community
Firmware version belongs to the airOS 8 or airMax AC generation, depending on the specific product line. It is not the latest firmware—Ubiquiti has since released versions like 8.7.x and even transitioned to UISP—but 6.1.7 remains critical for certain legacy deployments. ubnt firmware 61 7 licensed download work