"Transmit disabled (internal reason code 02)" in 20.3.1.2

[Luis_Clar]

Please! Having the same issue, is there any chance of solving it quickly?

Thanks.

[Simon_King]

Are you running 21.1?

PMP450x Release 21.1 is now available

anyone else have trouble upgrading to 21.1? I upgraded one of my AP’s a 450m last night after the update no SM’s would connect. I had to roll the 450m back to 20.3.1.2 to get the SM’s to reconnect. The AP was showing normal transmit but had an error code in red reason 2 transmit disabled on the general status page.

[Luis_Clar]

Nope, its currently running in 20.3.1.2

[Simon_King]

And what is the exact error you are seeing?

If you haven’t already, I strongly recommend you create a support ticket.

Getting support from Cambium

The Cambium Community site allows users of Cambium equipment and services to discuss their experiences and help each other. Although Cambium staff do read and post on the site, it is not a formal support channel. If you need help from Cambium, please raise a support ticket by visiting support.cambiumnetworks.com and clicking on Submit a request. [image]

[Luis_Clar]

Hi Simon,

Yes, we’ve created a support ticket but its quite urgent since we have a lot of SM’s registered getting out from the AP every 30 min, only solution is rebooting it constantly, thats what we’ve been receiving:

General Status Tab:

Radio Status Alarm is Active
Transmit disabled (internal reason code 02)

From Event Long in AP:

06/17/2022 : 08:33:13 CEST : :LOCK_NET_RESOURCE() failed error: 160 Priority: 7

Thanks in advance.

[Eric_Ozrelic]

Try updating just the AP to R21 (NOT R21.1, there’s a bug that might trigger the reason code 02 error)… if the error still persists, you will most likely need to RMA the AP. In fact… just be ready and plan on swapping out the AP.

[alex_torres]

Have you had to RMA any because of this error, Eric?

[Eric_Ozrelic]

No, I’ve been able to roll back or forward firmware to resolve it… BUT… if that doesn’t work, then you will most likely need to swap out the radio, and quite possibly RMA.

[Eric_Ozrelic]

Is this a PMP450m 3GHz AP?

[Luis_Clar]

Thanks for the repplies, its PMP450m 5GHz.

We apparently solved it by reinstalling the firmware, it works as usual now, hope it lasts…

It’s now running in 20. version

[Prabakaran_Nanthagop (Prabakaran Nanthagopalan)]

@Luis_Clar This AP is running without any issue after you were reinstalled the firmware?

[Prabakaran_Nanthagop (Prabakaran Nanthagopalan)]

any update on this…?

[Rob_Reif1 (Rob Reif)]

FYI…I just had this Transmit disabled error occur after upgrading to v22.02. It’s seems like this bug might not be totally resolved.
I tried downgrading to v20.0.1 and even upgrading to v22.1 but the AP continues to go into the transmit disabled mode after 9 minutes of operation.

[Eric_Ozrelic]

Like I said before…

@Eric_Ozrelic

if the error still persists, you will most likely need to RMA the AP. In fact… just be ready and plan on swapping out the AP.

[Rob_Reif1 (Rob Reif)]

Thanks Eric…I did submit an RMA for this AP.
What’s interesting is that I left the v20.0.1 FW on the AP and it has since onboarded SMs even though the banner still states “Radio Status Alarm is Active Transmit Disabled (internal reason code 02)”. We’re likely just going to replace the AP unless you have any other suggestions.

[Eric_Ozrelic]

Is this a 3GHz AP? If it is, you could try reducing the TX power a bit and see if that temporarily solves the problem.

[MiahSchaller]

Had this pop up this morning on a 450M 3G AP running 21.1.0.1 firmware. Nothing unusual noted in the Event Log. Rebooted the AP about 15 minutes ago and so far it is staying up.

[alex_torres]

22.1.1 seems great so far. we’ve pushed it out to all APs with no issues

[Thomas_Sturdy]

We just had this error code appear on our 450m AP, running 22.1.1 firmware. It has since resumed transmitting and we are looking to replace this ASAP, has anyone had any other insights into this in the past 7months?

[Luis_Clar]

I’m afraid is a matter of what frequencies you are using… replacing the AP did not help us.