Hello there,
I’m using a lot of RB921UAGS-5SHPacD-NM.
In the last days I had to phisically reboot three times a couple of RB921UAGS-5SHPacD-NM in different locations (with same outside temperature).
Ping was KO, ethernet interface remains connected but there were no possibility to log into the device (winbox or mac-telnet). Device were not listed into the neighbor list.
I guess the NetMetal were blocked due to high outside temperature (Italian summer with no cloud at 30° C).
On System Health menu I’m seeing:

Another NetMetal:

Is this function really available on NetMetal products?
How do I have to set it properly?