Strange behavior of orbi RBK753

Good morning, I have an orbi RBK753 system since 2021 and I have always found it good and let's say it worked well, sometimes I have to restart it but nothing major. The router and satellites have firmware version 4.6.9.11_2.3.5 installed, I disabled the automatic update. With this firmware version it has always worked well, excellent wifi coverage etc. Since I configured it I have never activated the NETGEAR_guest network, but sometimes it happens that for no reason the NETGEAR_guest network activates itself without me doing anything, the network is without WPA protection and if I try to connect the device does not connect. To solve it, I just restart everything and the NETGEAR_guest network disappears but maybe it can reappear after a few days, it does not have a specific day, the longest I have been without restarting the entire system was 82 days.  Lately though it's happening more frequently now I restarted it 4 days ago for this reason and today after 4 days I see the NETGEAR_guest network again in your opinion why does it do this? on the router and on the 2 satellites no LED lights up, the satellites when they connect that I restart always have the blue LED. I'm starting to worry 😞 it's always worked well what could it be? thanks.