# ePMP Software Release 5.9.2 is now available
**URL:** https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090
**Category:** ePMP
**Tags:** release-notes
**Created:** [February 13, 2025, 9:51am UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090 "2025-02-13T09:51:23Z")
**Posts on this page:** 11
**Page:** 2
### Author:  [@Eric\_Ozrelic](https://community.cambiumnetworks.com/u/Eric_Ozrelic)
#### Post date: [May 2, 2025, 2:59pm UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/21 "2025-05-02T14:59:21Z")
We run 5.10 on all of our legacy e1/e3k radios and it seems to be working fine. I don’t think they’re working anymore on the 4.x line, and so bug fixes for these legacy radios are being folded in to 5.x.
FYI… the asymmetrical uplink feature is only available on e4k radios. You can find details on how it handles legacy radios here:
> [@\[New Feature - 5.10.0\] Asymmetric Uplink Bandwidth](https://community.cambiumnetworks.com/t/new-feature-5-10-0-asymmetric-uplink-bandwidth/104420/):
>
> Affected platforms: AX \*5.10.1-RC14 has F300s supported too. Affected versions: 5.10.0 and newer The Asymmetric Uplink Bandwidth feature is introduced for ePMP 4xxx/Force 4xxx. This feature allows configuring a narrower Uplink channel bandwidth while the Access Point (AP) continues operating on a wider Downlink channel. The Uplink channel remains within the same frequency range as the Downlink transmission. Implementing asymmetric channel bandwidth enhances spectrum efficiency, reduces inter…
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### Author:  [@Maggiore81](https://community.cambiumnetworks.com/u/Maggiore81)
#### Post date: [May 2, 2025, 3:13pm UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/22 "2025-05-02T15:13:16Z")
Thank you.
I hope also in an official response from @aka
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### Author:  [@aka](https://community.cambiumnetworks.com/u/aka)
#### Post date: [May 5, 2025, 11:09am UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/23 "2025-05-05T11:09:12Z")
Hi @Maggiore81,
I would not underestimate Eric’s input! As he has much more practical experience running WISP then me. Along with a solid Cambium gear experience.
If up to me then yes! Our best practice is to keep everything on the latest stable. Which is 5.10 right now.
In 4.8.1 we had slightly broken WLT and later we had implemented a couple of current security improvements. Asymmetric uplink is worth upgrade as it significantly improves sector performance under interference.
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### Author:  [@Maggiore81](https://community.cambiumnetworks.com/u/Maggiore81)
#### Post date: [May 5, 2025, 1:30pm UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/24 "2025-05-05T13:30:59Z")
Hello
what is WLT ?
So the 4.8.xxx will no longer be developed/improved?
I have now moved to 5.9.2
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### Author:  [@aka](https://community.cambiumnetworks.com/u/aka)
#### Post date: [May 6, 2025, 10:31am UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/25 "2025-05-06T10:31:11Z")
**W** ireless **L** ink **T** est
4.8.1 is the last release for N and AC radios only.
Bug fixes and new features can be added to the next release only.
We are about to publish 5.10.1 beta now and then will be 5.11 with new features.
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### Author:  [@Maggiore81](https://community.cambiumnetworks.com/u/Maggiore81)
#### Post date: [May 6, 2025, 12:31pm UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/26 "2025-05-06T12:31:28Z")
Hello thank you for your answer.
So on a network N and AC only, has sense to put 5.9.2 or it is better to keep on 4.8.1 ?
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### Author:  [@aka](https://community.cambiumnetworks.com/u/aka)
#### Post date: [May 6, 2025, 1:42pm UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/27 "2025-05-06T13:42:44Z")
If you are already on 5.9.2, I don’t see any sense to downgrade.
Better give us some more time and upgrade everything to 5.10.1.
It will mean that all known issue are already addressed.
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### Author:  [@Maggiore81](https://community.cambiumnetworks.com/u/Maggiore81)
#### Post date: [May 7, 2025, 11:39am UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/29 "2025-05-07T11:39:27Z")
I have the same issue of HIGH cpu after 5.9.2 from 4.8.1 - Will be a 5.9.3 with the fix? @Fedor
The suggestion to disable the “crash reporting”, how can we disable en mass?
maybe with a ssh command? it is the feature named “Share Anonymous Crash Reports” ?
Where can I disable that feature? Thank you
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### Author:  [@Maggiore81](https://community.cambiumnetworks.com/u/Maggiore81)
#### Post date: [May 7, 2025, 4:46pm UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/30 "2025-05-07T16:46:28Z")
I have disabled the anonoymous crash reports, but the cpu ramained the same. I have seen a lot of higher cpu. The moment in the graph where the cpu is higher, is when upgraded from 4.8.1 to 5.9.2
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### Author:  [@ninedd](https://community.cambiumnetworks.com/u/ninedd)
#### Post date: [May 7, 2025, 9:27pm UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/31 "2025-05-07T21:27:51Z")
> [@Maggiore81](#):
>
> Will be a 5.9.3 with the fix?
There already is a 5.10.0 since the beginning of April, and I also believe there will be a 5.10.1 release shortly to address some issues in 5.10.0 which have been reported. The release notes for 5.10.0 do say that the ‘abnormal increase in CPU usage’ has been corrected already.
## Problems corrected
| Tracking ID | Products | Description |
| --- | --- | --- |
| | | |
| ACG-15901 | All | Fixed abnormal increases in CPU usage. |
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### Author:  [@system](https://community.cambiumnetworks.com/u/system)
#### Post date: [May 7, 2026, 9:28pm UTC](https://community.cambiumnetworks.com/t/epmp-software-release-5-9-2-is-now-available/104090/32 "2026-05-07T21:28:50Z")
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