@Fauzan007 Note that when dealing with Tether there are always two different passwords. One of them is the password of your TP-Link ID account that you need to enter after you've opened the Tether...

@Salih_HU Hi, The RE305 cannot build a Mesh network with the Deco 9, because the RE305 V4 supports OneMesh/EasyMesh, while the Deco 9 supports DecoMesh, which are not compatible. However, you can...

@Anthony_Thet Hi, Do you have the possibility to test your Archer T4U Plus on another computer? In case it doesn't work on another computer either, then it's probably faulty. 5 GHz Wi-Fi still works...

@VladB100 Hi, It's impossible to predict whether it will work or not. If the socket in the underground parking goes through your apartment's electricity meter (i.e. the electricity used from that...

@JRichy Hi, Can you successfully connect to that Wi-Fi network when using the password method instead of the WPS method? Or does that fail as well? You could test if it works better with the latest...

@Xeffort If you are getting 110 Mbps (RE305) and 300 Mbps (router) right before the wall, but only 8-10 Mbps behind that wall and the wardrobe, then I think Wi-Fi just isn't the right way to go here....