RB4011 "freeze" after enabling switch2 cpu ports

RouterOS General
1

Hi
The title says it’s all.
If I try to enable any of the ports what powered by the switch2 cpu (6-10) the RB4011 freeze, getting very slow, showing false informations about the ports ( it shows its RS ) while there is no cable attached in the port.. and measuring incredible TX/RX speeds (like 34.4 Gbps).
And the device is hot as hell. Even with proper ventilation.
For now, I disabled those ports, and there is no problem right now, we can use the Router, but it is very frustrating..

Does somebody got any idea why does this happens?

2

If this happens with multiple different ROS versions (6.48.6 as v6 long-term, 6.49.6 as v6 stable, any recent v7 such as 7.5), then it’s most likely a hardware failure.

3

I did ROS update from 6.47 factory default to 7.5 .. I’ll try to downgrade to 6.49.6.

4

Hi,
i use RB4011 with ROS V6.49.6 and the ports you said with no problems.

Best Regards

5

I’m like aTOMico, I use all ten of the Gig ports (nothing in the SFP) on my RB4011 with ROS v6.49.6 without issue. Temperature shows 32 C in an air conditioned data cabinet.
Sounds like a hardware problem to me.

6

Is this a new unit? What’s the history behind it?