Hi, Do you mean that the powerline link rate between the 2 adapters is 400Mbps？Which you saw on the tpPLC utility? And we can do some troubleshooting and try to fix it first, you can follow the below...

Hi. Is it an outside network environment? How many devices need connect to the internet at the same time? How far away between each other and from the main router. And please draw us a network...

Hi, What is the light status of the 855RE? Do you use the home wifi password to configure this range extender? Meanwhile, please refer to the instruction below to do further analysis....

Hi, With the range extender powered on, hold the reset button/hole for 1s to reset it. Then you can use default login password to login. May it help and have a nice day.

Hi, What is the light status of the RE650 now? With your lenovo computer connected to the RE650, can you get internet, what is the IP address and gateway obtained? Note: here is the instruction to...

Hi, Here are some range extender can be used to extend the wifi range. https://www.tp-link.com/home-networking/range-extender/ For the price, cause it varies in different countries and districts, it...