Occasional drops in downlink throughput on 4600 under 5.9.2

Hi guys, why this in an AP 4600 4x4 with only 4 SM 4625? All in v5.9.2… i change the option cambiumAccelerationEngine to 3, but is the same.
What can be the problem?

Hello @Alessio_Garavano,

do you see Capacity Drop Packets incrementing in statistics?
Is there OSPF, MPLS, VPLS or some kind of VPN working through this link?

We have a potential fix for this kind of issues. It was already merged in SW 5.10.0
You can try alpa build ePMP R5.10-RC29 . We are going
to publish a beta next week. So it is stable enough. But still needs to be used with caution in a production environment.
Could you try it and let me know if it fixes your issue?
If not, please, send me techsupport files from AP and SM when it is in progress.
Thank you!

Hi Andrii, nothing of dynamic routing, mpls, vpls or vpn… only vlans… testing now upgrading the 4 SMs and the AP to this new v5.10rc29 and look…

Not fix the problem and pior! there is not traffic!!! look…

We are now going back the AP to 5.9.1 urgently!

The problem is the same in the 5.9.1 and 5.9.0 too…

We hope the fix the fastest possible please!
Thanks and regards!

This is a PTP 425, always this link had theses drops… now testing if was fixed with this new version 5.10rc, but not… look…

Hello @Alessio_Garavano,

if you don’t have any dynamic routing there then it is not the case I’m talking about. And sounds like something new.

Can we have a remote session so I can see it?

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Hi Andrii, of course, sending in private! Thanks!