Hi @Clive_A ! Thank you for your reply. No, I've done my upgrade on "live environment" therefore I have no much time to test different scenarios. I've moved (again) to Omada controller (installed...

Hi @Clive_A and thank you for answering! I guess the problem is not only the web browser (cache cookies etc) - as I have already mentioned in my post I did cleared all and also used another browser...

@Psquared Same problem here - ER605 v2, firmware 2.1.2 - web GUI is refreshing USB modem always back to "Argentina". I have changed to manually but no luck as well - after save it is going back to...

@Hank21 I would say "what a beautiful catastrophe" however it was time consuming (about 5h) and a kind of disaster for the local network but... starting from beginning. I have decided to use USB...