RBR/W760 Firmware

I am confronting the same or related issue. The problem I have is that I cannot login to either of my RBS760 satellites. I get a dialog asking for my credentials but after submitting them the window is either blank or the sign-in dialog remains. If I enter bogus credentials a login message does appear. I have gone through factory reset and moving a satellite so that is could connect to the router with wired backhaul. I am basically stuck and unable to update firmware. In fact I am only attempting to do a manual firmware update because the online update has been returning no updates since the 6.3.8.11 release in December 2025.