@Nidhi Do all devices fail to connect to the wifi network? Have you ever tried to log into the web UI of this router and change the wireless settings? Including wireless network name and password....

@Azazel110 What about the 5GHz wireless led? Please log into the web UI of the Archer C4000 and verify whether the wifi feature is enabled; And is there error message on the 5GHz wireless settings...

@DamianB483 Hi Damian, we did not replicate this issue at our end. If it is okay for you, we would like to follow up your case via email to do further analysis. Please check your inbox. Good day.

@Galaad Hello, please check the IP address of the speaker and your wife's phone. Please notice that they can access each other when they are in the same subnet. You can connect the cellphone to the...

@alessio9111 The official driver supports Mac OS 10.12. We are working on the driver for the Mac OS Catalina; now you can search online and verify whether there is suitable driver for your device....

@alessio9111 What is the error message you saw? Try to change another USB port to plug it or reinstall the driver. Besides, what is the OS version of your MAC?