@Axo_another Hi, thank you very much for posting on TP-Link Community. 1. For the Archer AXE5400 model, we will add it into the community system soon, thanks a lot for the feedback. 2. To set static...

@FenrisLycaon Hi, what is the hardware version of your Archer C20? And did you change operation mode to Access Point mode or only changing the IP address and disable DHCP server manually on the C20?...

@Makak Hi, in that case, you could connect the second router to the main router via Ethernet cable and configure the second router as an Access Point: How to configure the TP-Link wireless router as...

@aceedburn Hi, thank you very much for posting on TP-Link Community. Please try resetting the router to factory defaults by holding the reset button until power LED starts flashing, clear the browser...

@AD91 What is the hardware version of your MR400? Please check it on the router bottom label instead of the web interface.

@Neil_f Will do, please pay attention to the solution update of this post.