@JohnRichardTLH I think this problem is the difference between theoretical values and actual values, which may be due to the limitation of the antenna's transmit power.

@lukass2000 After reading your description, I thought of a solution. You can enable the RSSI Threshold function on the EAP225, so that devices with weak signals will disconnect from the EAP245.You...

@takidani You can check whether the Wifi password contains special characters, refer toSpecial Characters Not Suitable for Wi-Fi Name and Password - Home Network Community (tp-link.com)

@remy-00 The IoT Network function depends on the firmware version of the main Deco. If your main Deco is X50-5G, it seems that the current firmware version does not support this function.

@Han6893 When I encountered the problem "Unable to connect to the Internet" before, I solved it by referring to this post.Unable to connect to the Internet - Home Network Community (tp-link.com)

@thor2002ro I recommend connecting your computer directly to the front-end modem to test whether the network speed is normal. If it is normal, you can try to restart Deco, or check whether the QoS...