@PWMesh Hi, to build up a Onemesh network, a router and a network expansion device that both support the Onemesh feature are needed at least. In other words, the RE300 can create a mesh network with...

@Marco.Giordano Hi Marco, it is not a serious problem, that post was spam and I have deleted it. We will check some details and solve this problem. 1. What is the current led status of the TL-WA850RE...

@DieWors That would be great, you can use the extender to boost wifi signal now. May I know what kind of settings you have changed on the main router? It may help others who have the same issue....

@HarryCat You are welcome, it is glad to help.

@HarryCat Thanks for the information provided. May I know do other devices connected to the 5GHz of main router have the same issue? Have you ever tried to change the wireless settings of the main...

@Nevolagziel The default login username and password both are admin by default. You can follow the QIG to configure it. Or you can watch the setup video to give it a go....