@GopalPun Hello, as per your simple description, it seems that the wall obstacles or heavy interference between the G/F and the upstairs in your house is heavy, which cut off the signal a lot. May I...

@Matmat Hi, the issue seems quite interesting. As per your description, it seems that the 5GHz band only visible in the first 2-5mins when the router restarted, it then will disappear, am I right? No...

@Paras237 Does the fourth device get a valid IP address from the A6 when connected to it? What is it? You may check it as below: https://www.tp-link.com/support/faq/838/ If that is correct, such as...

@KenH Hello, thanks for reporting the issue to the TP-Link community. Please try the below troubleshooting and see if it helps: 1. Please change the 2.4G network name to a new one, which is different...

@Rajdeep098 Hello, as for the 2.4G band issue you are reporting, can you confirm if the 2.4G signal is disappearing, or it just drops, but you can still see it? How did you recover the connection? Do...

@Rudolph Sorry, no more updates, please wait patiently, thanks.