SRR60 random reboots

I've had the same problem for some time, with the SRR60 and two SRS60 satellites.  It's not terribly stable.  At least one satellite loses connection a few times a day, often turning white and flashing slowly, and will turn purple for about 3-4 minutes before flashing white again and reconnecting.  The IP cameras that connect to this satellite immediately disconnect until it comes back online.

I've just tried hardwiring it (the wifi connection from the SRS60 to the SRR60 is OK but not perfect, but if I move it, then I won't get the reach outside that `I need).  I'm hoping the Cat5e cable (through a non-managed gigabit switch) will take priority over the wifi connection, so fingers crossed!  I haven't reset anything, just hoping the hardwiring between SRS60 and SRR60 will override the wireless link.

I have something like 168 devices connected, of which maybe 100 are wireless, but I think there are some legacy devices showing up.  Wireless speeds are generally good if the satellte is connected, and the SRR60 router has been connected for 5 days now since last I rebooted (or firmware updated)

I do have a couple of Ubiquiti APs hardwired to the SRR60 as well, using the same network name, hoping that some clients will connect to them, where I suspected they might have trouble reaching the Orbi Pro router or satellite.  I have connections, but I'm not sure the clients (which tend to be outside IP cameras at some distance from the house) are managing to connect to the Orbi mesh, or are initially connecting via the Unifi Ubiquiti long range APs and through to the SRR60 that way.  I think it's the latter (I did manage to check the Unifi APs at some point, and think they registered some clients) which is good news.  

Now I only need the satellites to stop disconnecting (or for the hardwired option to be successful, which only time will tell, I guess).  Hopefully I'll find out within the next couple of days