@stritz Yes, they can, they can share the same network - check this PLC FAQ.

@TresBes Reset the RE to its factory defaults by its reset button (pressed for about 10 seconds) and reconfigure the RE with your new router.

@slowlearner To be able to connect your Epson to SG105 with an ethernet cable the printer should have an ethernet port. Usually cat5E/6 ethernet cables should suffice to build the connection to the...

@MarcosV AX53 doesn't suppot ethernet backhaul yet (supported devices). You should keep an eye for FW updates on the TP-LInk support portal. Once it supports ethernet backhaul, you can use this guide...

@MaxBG Are you using the AX1500 in AP mode or router mode ? I've seen these sold under 3 year warranty. Check you warranty card to see if it's still covered.

@MaxBG From when do you observe such behaviour - ever since you bought the router or recently (for example after FW upgrade) ? if the former talk to your retailer for replacing the device, but If the...