@Vincent-TP I cannot modify the WAN settings without entering the VLAN, if I enter 1 this is already in use and cannot be used.

@Vincent-TP wow, cool, big changes to the interface :-) upgraded without problems on windows. upgraded controller on raspberry pi OS and Ubuntu OS to, no problems.

@KlausdB i reported the same thing earlier but it doesn't seem like they have done anything about it since there are still problems....

@vedat Look at the default interface if all the ports are enabled. I had something similar on the ER8411 after upgrading to 5.14.?? I don't quite remember the version after 5.14, the problem was that...

@sagar002100 Use this. this site have always latest firmware. https://www.tp-link.com/en/support/download/er605/v2/#Firmware

@Plankton82 Check the firewall on the PC. make sure that the network card is not set to public, it sometimes switches to public by itself.