Orbi 2.4gHZ only when set to Auto

I believe if you check the first post you will find the answers to your questions.  I have had the system for just over 2 years.

I hadn't made any changes to Orbi.  one evening we suddenly noticed that the security cameras (all at 2.4) no longer worked.  The ones that were hardwired did work, so it wasn't the camera software which is Blue Iris.

One weird thing which I forgot to mention is that the sattelite was connected on 2.4 but nothing else.  Odd because I thought the backhaul was always 5gHZ, but in researching I learned that it does failback to 2.4 if 5 is having issues.  Which it didn't seem to be as all of the 5gHZ devices were working find even those connected to the sattelite.

I tried switch the 2.4 off/on.  I don't recall if I tried setting it to auto, as I did't think that would have an effect.  To see if there was some issue with configuration/bad update, etc.  I did a backup and then did a factory reset.  After the reset I setup the router and things seem to all work including 2.4.  The sattelite still wanted to do 2.4 but after a while switched back to 5.  Then I restored the backup.  The 2.4 failed, as I set 2.4 to channel 6.  Confused, I tried Auto, thinking that won't make a difference, but it did.  So I am stuck using Auto.

When I can I will try switching back to channel 6 now that there have been several days since the reset.