D-Link DGS-1210-28/ME Switch intermittently reboots/shuts down. What could be the problem?

Question

network hardware

Ladies and gentlemen! Already the head boils from the current situation. The enterprise has a D-Link DGS-1210-28 / ME switch, it worked without problems for three weeks, and problems started with it three days ago. At first he just rebooted, I learned about it from the employees who were working at that moment, a little later he rebooted with me. There is no pattern, it can reboot 3-4 times in a row in 2-3 minutes, or it can work like clockwork all day and reboot at night. This morning I came to work so it turned out to be turned off altogether, twitched the power cord, it started up. What's wrong with him? Why is he behaving like this?
- The switch is turned on through the UPS
- Energy saving in the device itself is disabled
- The temperature in the server room is 18-20 gr.
- Electricity is stable
I will be glad to hear your opinion!

Answer 1

Must be disabled on all switch ports IEEE802.3az EEE
By default, this option is enabled on all ports, although the manual for the switch says that it should be disabled.
UPD: the switch worked for a week and this morning it rebooted several times, and then turned off altogether (all the indicators went out), it worked after the reboot, but after a while it rebooted again and turned off

Answer 2

well so and in logs at it what?

Answer 3

D-Link

At first he just rebooted, I learned about it from the employees who were working at that moment, a little later he rebooted with me. There is no pattern, it can reboot 3-4 times in a row in 2-3 minutes, or it can work like clockwork all day and reboot at night.

If I were you, I would check the temperature regime of the switch itself, the performance of its fans and power supply (see electrolytic capacitors).
temperature in the server room 18-20 degreesSo what? Do you know that ASICs (specific microcircuits) are sometimes heated up to 80 degrees?

at the expense of electrolytes, I see no reason to check them, since the switch is a month old.

The switch is a month old - so what? Where is the guarantee that this situation will not repeat itself in your case?
And one more option - if a new firmware version has been released, try updating it.

Answer 4

return it and get a new one