ePMP Software Release 5.4.2 is now available

Supported Platforms

  • ePMP AX based family

Download the firmware and documentation from:

ePMP4600, Force400/425/4600C/4625

Note for 6GHz ePMP AX users

Cambium Networks is making a limited number of 6 GHz ePMP 4600 Series proof of concept kits available for those network operators that have experimental licenses authorizing the use of these radios in 6 GHz. Operators can purchase these radios now and, upon submitting proof of a valid experimental license to the Cambium Networks support team via submitting the support ticket, receive a special software version enabling the 6 GHz channels on these radios. When the FCC officially launches the 6 GHz spectrum, these pre-launch radios will be software upgraded to meet the final band requirements.

Upon initial shipment, these radios will have FCC approval to operate in portions of the 5.725 GHz to 5.850 GHz spectrum and are locked only to these approved frequencies and power level. Transmit power in the 5 GHz band will be considerably lower than a typical 5 GHz radio as the primary function of these radios is to operate in the full 6 GHz band. Once an operator provides evidence of the experimental license to Cambium support , a firmware update will then unlock the full 6 GHz band. It is the operator’s responsibility to fully comply with the regulations dictated in the experimental license.

Features description

The following are the new features introduced in System Release 5.4.2:
FCC DFS channels opened for ePMP 4500 8x8

Please note that FCC DFS channels are currently opened for ePMP4500, ePMP4500C, Force400C, Force425 and are still closed for ePMP4500L, Force4525 and Force4525L.They will be opened in the upcoming releases.

Issues Resolved in System Release 5.4.2:

TrackingID Product Description
AXG-5714 All SMs were not able to connect to an AP when AP is switched to alternate frequency carrier with 40 MHz bandwidth configuration.

DFS will only work with ePMP 4500 8X8 system, 4500L still no DFS.

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This software is dedicated for all ePMP devices ?
If not please make proper recommendation on the Cambium Cloud :wink:

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5.4.2 is the recommended firmware for ePMP AX platforms.


Anyone loaded up any 400c radios with this firmware? If so how is it running?

I have 1 and running some test, still too early to give any feedback as its only been 5hrs.

Makes sense and really appreciate you taking the time to respond!

Which is the latest version recommended for ePMP 3k and compatible subscriber modules? - best from available :slight_smile:

Does 5.4.2 support bandwidth control through QoS yet. If not, what is the time frame for this. Will QoS work with Radius the same as e3000?

Seeing issues with a 4500 AP and a 4525 SM where the Maestro On-Prem URL is not being saved properly on 5.4.2 firmware. When we enter https://ourURLhere.org, the Save button is staying lit up after saving and hovering over it says “Elements to save: cnMaestro URL” If we reboot the AP after attempting to save, we have seen the URL change to https:\ / \ / ourURLhere.org or https:\ \ \ \ ourURLhere.org or https:/ / / / ourURLhere.org
I have tried claiming the AP in Maestro using the and the onboarding queue shows it is Onboarded but “Waiting for device”

edit: I was able to onboard the device by using the IP address for the URL with :443 added to the end.

QoS feature is coming after TDD and Backward compatibility are released.
Preliminary ETA is Q1/Q2 2024.
It will work in the same way as it’s implemented for ePMP3000 today including RADIUS VSA parameters.


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