@Krunopin It's about your local management password that can be changed here: If you don't remember this password the only way to resolve this is to reset the RE to its factory defaults and...

@Rudi-F Archer AX73 supports 802.11ax on its 2.4GHz band: If a wireless client that doesn't support that standard has issues connecting to the router you can set 2.4GHz mode like so:

@xyloPL This router model is provided by ISPs and in general they should provide any new FW releases to its customers.

@Agga05 Have you tried to open the WebGUI in a private tab to bypass the browser cache or use a different browser ?

@ArcherC6_13 It's best to contact your ISP for help on the type of your internet connection. It's quite different if you choose "Dynamic IP" or "PPPoE connection". If your ISP uses PPPoE connection...

@TheZethy Try this link for older FW releases.