RB800 is Blocked

RouterOS General
1

Hello Boys

Last week I tried a bench with four radio modules RB800 XR5
Ubiquiti, I noticed that as long as everything works well with 2 modules, just
I put the other two will block the card, I have to turn off and
again.
I tried everything, but there is no way, I also updated the firmware to
version 4.10 to someone and the same thing happened?

Thanks

2

What do you mean by block wireless card?

What power supply do you use?

3

The RB800 has 4 MiniPCI slots, during testing I inserted 2 XR5 Ubiquiti card configured with dual n-streme with this configuration and the card works fine, if I add another 2 XR5 Ubiquiti card always with the same configuration after a few minutes, the RB800 is in block, I have to turn off and on, then work for another 5 / 10 minutes and then goes back to block.

As I am using Power over Ethernet power supply 24V 3A

4

What do you mean by block?

RouterBOARD is restarting all the time?
It is not accessible by IP/Console?
Anything else?

5

The RB800 is no longer accessible unit through winbox do it via ssh does not respond even to a ping.
While he works with only 2 XR5 cards work properly, you can only suffice to update the firmware?

6

Are you able to get access to the router via Null Modem Cable and check the output during the problem exists?

7

no unfortunately I can not do this test, I found a cmq
guide on the site Mikrotik
http://www.mikrotik.com/download/share/rb800_heatfix.pdf
to solve a problem of temperature.
Then I was advised to use power from 48V.

8

MediaWisp, why do you think the problem is related to the issue described in PDF document?


Do you have PoE?
How long is Ethernet cable?

It is necessary to get console access to the board and check the output, when the problem is present.

9

In the tests I powered the board with a PoE power supply with a 24V cable 5 mt.
Which exit should I measure??

10

http://wiki.mikrotik.com/wiki/First_time_startup
Connect Null Modem cable to your router and check the output when the problem is present.

Try to use 48V power supply without PoE.

11

What do yuo check exactly?
What do you mean output?
which exit?

12
  1. I would like to know, what you see at the console (when you attach Null Modem cable you get entire output from console, perhaps there are any errors/panic information/etc.), when the problem is present.
13

looks like the overheating problem is still there