CubeSA 60Pro ac: 60Ghz clients flapping

We have a new setup of about 15 CubeSA 60Pro AC access points with Cube 60Pro AC client radios and since we installed them, we’re getting frequent drops on all 60Ghz clients. We have a simple setup with bonding (for 5Ghz failover) and can’t see why this is happening. Any suggestions on where to look? Both AP and CPE are running 7.4.1.

I’ve tried turning on wireless / info or debug in the logs and aren’t getting anything. The client signal strenghts are in the 80’s and 90’s with an MCS of 8.

AP 60ghz config:

/interface w60g set [ find ] disabled=no frequency=66960 isolate-stations=no name=AP-60Ghz put-stations-in-bridge=bridge region=usa ssid=myap
/interface bonding add mode=active-backup name=bond1 primary=AP-60Ghz slaves=AP-60Ghz,AP-5Ghz

Client 60ghz config:

/interface w60g set [ find ] disabled=no mode=station-bridge name=wlan60 put-stations-in-bridge=bridge region=usa scan-list=58320,60480,62640,64800,66000,66960 ssid=myap
/interface bonding add mode=active-backup name=bond1 primary=wlan60 slaves=wlan60,wlan1

I mean, it’s all pretty vanilla.
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We have the same problem in multiple places. So problem is in RouterOS. We wait for fix…

We are looking into increasing our vertical separation on several of our APs. What distance are your APs from each other? Ours are about 10" away from each other vertically. We are also considering adding some EM shields on the backs… if that could help.

The problem is not caused by interference. It also happens to us in places where is 1x AP

The same is happening with old 802.11AD devices I think its a driver issue

I met this problem also , Both AP and client running 6.49.6,I saw large amount of IRQ related with ether net interface. Hope this will be useful to solve this.
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Same exact setup and hardware. Same issue :frowning:

The same problem with 7.5rc1. Mikrotik are you working on it?
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Any update on this @Mikrotik? I have purchased quite a bit of these and they are currently useless. @normis

We deployed 2 sectors and 12 Cube60Pro AC’s at a fairground for a recent event and had nothing but problems. I ended up having to disable 60Ghz entirely to get them working, and nearly lost the contract for the event while it was going on.

Mikrotik, let’s get an answer on this please before I end up returning the entire lot to our distributor.

It seems like it only happens when you pair the CubeSA 60Pro with the multiple Cube 60Pro.

I have swapped out the Cube 60Pro with wAP60 and paired those with CubeSA 60Pro work fine.

I also swapped out the CubeSA 60Pro with wAP 60Gx3 AP and paired those with multiple Cube 60Pro and that worked fine.

I hope there is an update soon…

Have any of you filed support tickets with MikroTik? They often fail to notice posts like this.

The way to get MikroTik to look at an issue is to file a support request with support@mikrotik.com

Guys
802.11 AD and AY are not TDMA protocols. Maybe thats why it flaps…
a hidden node

Yes. Reported 12/Jul/22 to support. SUP-86857
No sollution yet

Only TCP Stream pass through AP Bridge Ether1 interface can cause this

Yup. SUP-91227

Client’s Up&Down are closely related with Ether interface’s IRQ , and It seemed that there is no IRQ load Balance , CPU#0 will response All those IRQ, then, CPU #0 reached 100% usage, then, flapping occurred. and I think IRQ Load Balance and IRQ Merge will reduce flapping.
And I also feel puzzled abut why not Ethernet hardware forwarding does not work.

Any update on this? Support sent me an alpha build to test, but it didnt work. Same issue…

I can confirm. I’m also testing alpha and it didn’t help

@mikrotik.com Any update on this?