@TK40YR The router itself should not be able to change the IP address seting of a client device if the device is set with a static IP address. This issue should be connected with something else, can...

@arcturus TP-Link Powerline adapters utilize HomePlug AV/AV2 Standards, which means all of our Powerline adapter models are compatible with each other and can be used within the same network....

@Dave4696 You'd better contact your local support for further assistance.

@Dave7574 It's quite possible that your wireless radio is faulty. You can confirm that if you reset the router to its factory defaults and check if the 2.4 GHz radio is working. If that's the case...

@naj1978 This LED doesn't have anything to do with your wireless password - that's the WPS button indicator (from the AX21 user guide):

@bankerjoe You should be able to do that. Here's how, but it seems only available for Archer AX55 at this moment (according to the FAQ).