CRS310 unmanageable

[laurenttaieb]

Hi Forum,

I need a bit of help. I have a CRS310 with 2x10G SFP+ and 8x2.5G.

I’ve completed uploading the standard configuration and the switch starting to become uncontrollable with the fan blowing at the highest levels, all ports (SFP+ and RJ45) shutdown and box unreachable.

I have tried to unplug/replug power, doing a hard reset by power it off and handle the reset button while power it on again. No result.

Would anyone have a clue on (a) what could have happened and (b) how to regain control/reset it to factory defaults ?

Thanks

Laurent

[jaclaz]

Remove SFP's modules (if any) first thing.
The fan might go astray because of a temperature sensor or anyway because of the SFP.
Then your next best chance Is console.

[laurenttaieb]

That’s what I did in the first instance but no change. Is the console accessible on this device via the USB port ?

Thx

Laurent

[marekm]

Check for the loose heatsink inside poorly glued to the chip, detached in shipping and causes overheating.

[jaclaz]

My bad, I thought you were talking of this model (that has a console port)
https://mikrotik.com/product/crs310_1g_5s_4s_in
while I now understand you are talking of this other one:
https://mikrotik.com/product/crs310_8g_2s_in

If this is the case, yes, there is the possibility to connect with a serial USB adapter, though it seems that access is possible only in a later stage (compared to the direct console):

CRS310-8G+2S+IN USB Port

Hi everybody, I am considering buying a CRS310-8G+2S+IN and have a question about the USB Port. What exactly does it? In the product video it is said to provide “additional RouterOS configuration options”. That’s kind of vague. What exactly can I do with it? Thanks in advance. -piratefish P.S.: Also, why is the power input in the front of the switch?!? That does not make sense to me. Can somebody explain it to me?

[laurenttaieb]

@jaclaz

ase, yes, there is the possibility to connect with a serial USB adapter, though it seems that access is possible only in a later stage (compared to the direct console):

The issue looks to be at the early stage of the boot. i.e. the ports are even not blinking and Netinstall doesn’t see the device. I don’t think heat is an issue at that stage of the process and it looks more a bootstrap issue with Mikrotik. Does anyone believe the USB Port would be enabled at that stage ?

Thanks

Laurent