Yeah, like I’m able to access the interface twice in one day then like 4-6 hours stop working and I don’t make any changes, I’m currently on version .21
Sorry to say but it's happening again, I rebooted the router and disabled SmartBOOST. At noon I was able to access the interface, I also tried to disable the cache in inspect element and the issue persisted.
I used Opera GX on a Windows 11, Physical setup ISP modern is connected to R3 with my PC ,WRF laptop, and cisco phone, Not using any PPPoE/VLAN or DHCP identifiers for a connection