Des 3200-26 loses "ports" after 15 minutes. Why?

Question

System administration

There is a dlink des3200-26.
The problem started after a factory reset.
There is no access to the console now, everything is via the web.
15 minutes after switching on, it loses visibility of all connections. It only helps to pull out 220V.
And even then, without power, you need to keep at least 5-7 minutes, so that then again after connecting, he saw the connection.
Tell me, maybe some kind of default lock is not disabled?
As far as I know, if reset to factory settings, it should work stably.
Updated the firmware - did not help.
Stick into the port, no matter what, from the PC to the router. With traffic and without traffic.

Answer 1

Because long sucks. I have already come across such 4 lengths, it helps to change the firmware to openvrt or ddvrt, though not for long either. I think that they have a flush covered like this.

Answer 2

Are there no rings? It is also worth looking at what is written in the log and errors on the ports.

Answer 3

Maybe it's in the hardware - the capacity was inflated in the power supply unit? Components overheating?

Answer 4

really .. the first thing to look at the switch logs + see what happens in it after chopping off everything (com port and all that) the
second firmware .. it would be nice to write which one is now and which one was tried.
third support.dlink.ru/ru/contacts look at your city (or the nearest one) and call, they are extremely responsive guys.
I have a lot of different 3200s, but no such problems have been noticed, so I tend to marriage / breakdown on the physical level.

Answer 5

look at the error log in the switch,
unwind the switch and look at the condition of the conders (whether they are swollen by eye) and the heating of the microcircuits (by hand).

Answer 6

I had this during a network storm (ring), but it's easy to calculate - network ports burn like a Christmas tree garland. Ports hang, even if nothing is plugged into the switch at all?