RB2011 Power Adapter Woes

Hardware MikroTik hardware general
1

Hi guys I’ve been having a bit of bad luck lately with my RB2011 Power Adapters in the last couple of months.Adapters fail in such a way that causes RB’s to either randomly reboot or would cause the RB to fail bootup most of the times.Most of my units are directly powered via the DC in jack but had one site fail via POE-in like this as well.

Have burned through at least 6 units or so in the last 2 months at different sites and as is the usual , it’s almost always at a highsite or VIP site unfortunately :neutral_face: :neutral_face: :neutral_face: :neutral_face:
I’ve seen some guys talk about powering them with 15w Notebook chargers and that seems to work well.Does anybody have a link to the notebook chargers they use with these boards ? Just want to make sure I get a quality unit.



Thanks

2

Interesting, ever get it sorted out?

3

Nah nothing yet unfortunately.I might have to move to powering them up with POE with a Ubnt adapter though I’ve had failures of those as well in the past :frowning:
I’m busy with a supplier trying to find a 3rd party manufacturer who make compatible DC adapters.

The bad thing is the adapters fail in such a way where the RB can boot , but not power the unit reliably.Playing with the affected devices in the lab even if I use the secondary power in via the POE in , the router will boot with the semi-faulty DC adapter.

Honestly the best way around this is just good filtered power and high quality redundant DC adapters.

4

I agree with that. Since these are RB2011 units, do you think maybe some capacitors are going bad?

5

Same goes for me with various 24vdc power adapters that are supplied for SXTsq5ac rounded shaped 24vdc power adapters, hAPac2 rectangle shaped adapters, and for the LHGXLHP5 and RB2011.
About 50% of the failures are due to bulging caps capacitors which typically fail after about 6 months or more and other 40% fail after a month or so where one can see over heating on the circuitboard and or they have a horrible stinky burnt smell on opening. The last 10% have indeed a too low voltage like you say, whereby the LED’s on the equipment glow, but does not actually boot up

I am a WISP in Holland with thousands of Mikrotik units and every week there is a unit failing.
Is clear to me that these power adapters are too cheaply sourced, and I would rather pay a few euros more for the Mikrotik product, as the extra cost in my time of replacing them is far greater.
It would help if Mikrotik would supply equipment with no power adapter since they are simply trying to get competitive equipment out there for comsumers, but ruining operations for us businesses. Then Mikrotik can separately deliver a quality adapter for businesses or a cheap one for consumers, or we can source elsewhere.
I will now be sending all adapters back for repair somehow in bulk. Unfortunately my supplier does not want to know about passing on this info to Mikrotik, or to collect data from various customer to push back on Mikrotik. So lets hope that Mikrotik Support reads this? and others may contact me if you are having this same issue.

Cheers Daniel Beckmann Friesedraad.nl Holland