@Bagpiper1 You may want to configure your Extender. Please check this: How to configure Range Extender via Tether APP

@XinsaX Due to the mechanism of extender, extender needs to receive data and then forward data to PC/phone. This is different from the direct communication between Router and PC/phone. So the speed...

@Hepa Maybe you have set the same wifi name for RE305 as your router's. Please change that, a different one, then it's easy to know which wifi we are connecting to. Please check this for detials: How...

@Caliiin Please provide the following information, then I can provide further help. 1. When the issue happens, please login to RE450 and provide a screenshot of the status page as the following. 2....

@TechnoDummy For reset, please check this: How to hard reset TP-Link wireless access points, extenders to factory defaults

@Taulant Sorry, I'm afraid not. But your wireless devices or wired device can access internet via 855RE.