@MisterW Thank you very much. I had previously gone to the only computer store in my area that carried wired routers (50 miles one way) and they at that time had no TP-Link routers in stock, so I had...

The firmware that is newest for my router (hardware version 2.6 per the label on the router) is ER605(UN)_V2.6_2.2.4 Build 20240119 I have downloaded it, but have no idea how to install it. I am a...