# PMP **URL:** https://community.cambiumnetworks.com/c/products/pmp/51.md [Latest](https://community.cambiumnetworks.com/latest.md) · [Categories](https://community.cambiumnetworks.com/categories.md) · [Tags](https://community.cambiumnetworks.com/tags.md) --- ## [About the PMP category](https://community.cambiumnetworks.com/t/about-the-pmp-category/24325)
**Author:** [@system](https://community.cambiumnetworks.com/u/system)\ **Replies:** 0\ **Last updated:** [August 14, 2020, 12:49am UTC](https://community.cambiumnetworks.com/t/about-the-pmp-category/24325 "2020-08-14T00:49:52Z")
Provide superior uplink and downlink performance with proven cost effective fixed wireless access solutions that satisfy demanding business and residential users. --- ## [Cannot Delete Device (450M - 3GHz APs) from cnMaestro On-Prem – Failed to Unclaim on Cloud](https://community.cambiumnetworks.com/t/cannot-delete-device-450m-3ghz-aps-from-cnmaestro-on-prem-failed-to-unclaim-on-cloud/109077)
**Author:** [@fallahjeddi1](https://community.cambiumnetworks.com/u/fallahjeddi1)\ **Replies:** 1\ **Last updated:** [October 11, 2026, 1:50am UTC](https://community.cambiumnetworks.com/t/cannot-delete-device-450m-3ghz-aps-from-cnmaestro-on-prem-failed-to-unclaim-on-cloud/109077 "2026-10-11T01:50:14Z")
We are trying to delete 450M AP radio from our cnMaestro On-Prem instance. The delete job fails with: Failed to unclaim device on cloud We verified the On-Prem server has working DNS and HTTPS connectivity to cnMaestr… --- ## [Used equipment](https://community.cambiumnetworks.com/t/used-equipment/28076)
**Author:** [@flyhighwireless](https://community.cambiumnetworks.com/u/flyhighwireless)\ **Replies:** 7\ **Last updated:** [October 9, 2026, 10:13am UTC](https://community.cambiumnetworks.com/t/used-equipment/28076 "2026-10-09T10:13:36Z")
Anyone have used equipment for sale? 900. Or know someone with those. I am also looking for 2.4 and some 5.8. Thanks --- ## [450i AP AUX port cap not included](https://community.cambiumnetworks.com/t/450i-ap-aux-port-cap-not-included/108731)
**Author:** [@Ken\_Hohhof](https://community.cambiumnetworks.com/u/Ken_Hohhof)\ **Replies:** 2\ **Last updated:** [October 7, 2026, 12:46am UTC](https://community.cambiumnetworks.com/t/450i-ap-aux-port-cap-not-included/108731 "2026-10-07T00:46:39Z")
We have a number of 3 GHz 450i APs in stock and every time we open one, there is a gland for the POE port but no cap on the AUX port. I believe that is supposed to be preinstalled, and if you want to actually use the AU… --- ## [Phy transformer](https://community.cambiumnetworks.com/t/phy-transformer/109046)
**Author:** [@Kamal\_Hidayat](https://community.cambiumnetworks.com/u/Kamal_Hidayat)\ **Replies:** 1\ **Last updated:** [October 5, 2026, 11:26pm UTC](https://community.cambiumnetworks.com/t/phy-transformer/109046 "2026-10-05T23:26:53Z")
Hello cambium, Please inform what is transformer part name? --- ## [short range (approx 100-200m)for Port deployment, low capacity requirement. PMP product range only. im now checking 450b mid-range. how it's performance? thanks](https://community.cambiumnetworks.com/t/short-range-approx-100-200m-for-port-deployment-low-capacity-requirement-pmp-product-range-only-im-now-checking-450b-mid-range-how-its-performance-thanks/109010)
**Author:** [@Melvin\_Bautista](https://community.cambiumnetworks.com/u/Melvin_Bautista)\ **Replies:** 0\ **Last updated:** [September 29, 2026, 9:23am UTC](https://community.cambiumnetworks.com/t/short-range-approx-100-200m-for-port-deployment-low-capacity-requirement-pmp-product-range-only-im-now-checking-450b-mid-range-how-its-performance-thanks/109010 "2026-09-29T09:23:15Z")
I’m now checking 450b mid-range. how it’s performance? any other recommendation? thanks --- ## [PMP 40 \_ SM is not getting Gigainterfernce](https://community.cambiumnetworks.com/t/pmp-40-sm-is-not-getting-gigainterfernce/108944)
**Author:** [@sameer](https://community.cambiumnetworks.com/u/sameer)\ **Replies:** 4\ **Last updated:** [September 24, 2026, 2:59pm UTC](https://community.cambiumnetworks.com/t/pmp-40-sm-is-not-getting-gigainterfernce/108944 "2026-09-24T14:59:18Z")
PMP450b SM is not supporting gigainterfence ,its getting only 100/fullduplex , did anyone face same isseu (Note : we tried with cable/connector , more than 200 SM but AP we are getting interfence. --- ## [CBRS, CNMaestro, and October 1st](https://community.cambiumnetworks.com/t/cbrs-cnmaestro-and-october-1st/108841)
**Author:** [@alex\_torres](https://community.cambiumnetworks.com/u/alex_torres)\ **Replies:** 10\ **Last updated:** [September 16, 2026, 9:15pm UTC](https://community.cambiumnetworks.com/t/cbrs-cnmaestro-and-october-1st/108841 "2026-09-16T21:15:25Z")
I am very sorry to hear about the good people at Cambium who have worked on reliable products and were laid off. I hope they all find new opportunities soon where their skills and dedication will be valued. Will an on-p… --- ## [Pmp 450b retro Water Intrusion](https://community.cambiumnetworks.com/t/pmp-450b-retro-water-intrusion/108824)
**Author:** [@Don](https://community.cambiumnetworks.com/u/Don)\ **Replies:** 0\ **Last updated:** [September 14, 2026, 3:03pm UTC](https://community.cambiumnetworks.com/t/pmp-450b-retro-water-intrusion/108824 "2026-09-14T15:03:32Z")
GM Guys: We’ve been having a lot of stormy weather. Though some time in the distant past we experienced water intrusion with the pmp 450m AP we have not recently. That seems to have been fixed. Now we are finding tha… --- ## [PMP450m 5ms frame period and SM reconnect issues](https://community.cambiumnetworks.com/t/pmp450m-5ms-frame-period-and-sm-reconnect-issues/108775)
**Author:** [@James\_Burch](https://community.cambiumnetworks.com/u/James_Burch)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 5:15pm UTC](https://community.cambiumnetworks.com/t/pmp450m-5ms-frame-period-and-sm-reconnect-issues/108775 "2026-09-01T17:15:48Z")
We’ve been running a bunch of 450m 3ghz AP’s for a few years now. At the time we were recommended to configure the frame period to be 2.5ms. However recently as we’ve been struggling with performance on some of our busie… --- ## [Frequent SM disconnects - 3ghz 450b to 450i](https://community.cambiumnetworks.com/t/frequent-sm-disconnects-3ghz-450b-to-450i/108752)
**Author:** [@jakkwb](https://community.cambiumnetworks.com/u/jakkwb)\ **Replies:** 13\ **Last updated:** [August 27, 2026, 11:35pm UTC](https://community.cambiumnetworks.com/t/frequent-sm-disconnects-3ghz-450b-to-450i/108752 "2026-08-27T23:35:28Z")
Latest firmware on both the AP and the SM. Distance is 1.3 miles. Not LOS, but pretty close. AP is 450i with 60 degree panel antenna. Customer complains of losing connection. It does, in fact drop connection, seems to b… --- ## [CNUT AP refresh changing/corrupting root passwords on 450/450b CPEs during discovery](https://community.cambiumnetworks.com/t/cnut-ap-refresh-changing-corrupting-root-passwords-on-450-450b-cpes-during-discovery/108751)
**Author:** [@hammer185](https://community.cambiumnetworks.com/u/hammer185)\ **Replies:** 0\ **Last updated:** [August 21, 2026, 5:14pm UTC](https://community.cambiumnetworks.com/t/cnut-ap-refresh-changing-corrupting-root-passwords-on-450-450b-cpes-during-discovery/108751 "2026-08-21T17:14:36Z")
I realize Software Release 5.0.3 / 2021-08-31 may no longer be officially supported, but we still utilize it in our operations. I have the option enabled to discover IP information for CPE devices when refreshing an AP. … --- ## [What Speeds are you guys offering to Customers V.2 (2026 edition)](https://community.cambiumnetworks.com/t/what-speeds-are-you-guys-offering-to-customers-v-2-2026-edition/108699)
**Author:** [@rambern](https://community.cambiumnetworks.com/u/rambern)\ **Replies:** 10\ **Last updated:** [August 20, 2026, 6:33am UTC](https://community.cambiumnetworks.com/t/what-speeds-are-you-guys-offering-to-customers-v-2-2026-edition/108699 "2026-08-20T06:33:07Z")
I am curious of what kind of speed-packages other WISPs are offering their customers on Cambium PMP 450 series theese days? Espesially the 450m platform. There has been a topic on this earlier, What Speeds are you guys… --- ## [Feature Request/Security Concern: Option to disable default-on-power-cycle recovery mode](https://community.cambiumnetworks.com/t/feature-request-security-concern-option-to-disable-default-on-power-cycle-recovery-mode/108723)
**Author:** [@hammer185](https://community.cambiumnetworks.com/u/hammer185)\ **Replies:** 0\ **Last updated:** [August 12, 2026, 4:32pm UTC](https://community.cambiumnetworks.com/t/feature-request-security-concern-option-to-disable-default-on-power-cycle-recovery-mode/108723 "2026-08-12T16:32:16Z")
This question is primarily directed at the Cambium Networks product and engineering teams, though feedback from other operators is welcome. Background During recent power outages on our network, I have observed evidence… --- ## [5GHz Cambium PMP Access point 450v and Subscriber module antenna pattern files](https://community.cambiumnetworks.com/t/5ghz-cambium-pmp-access-point-450v-and-subscriber-module-antenna-pattern-files/108660)
**Author:** [@Gunasekaran\_Murugesa](https://community.cambiumnetworks.com/u/Gunasekaran_Murugesa)\ **Replies:** 1\ **Last updated:** [July 24, 2026, 6:27pm UTC](https://community.cambiumnetworks.com/t/5ghz-cambium-pmp-access-point-450v-and-subscriber-module-antenna-pattern-files/108660 "2026-07-24T18:27:10Z")
Hi, I’m looking for 5GHz Cambium PMP Access point 450v and Subscriber module antenna pattern files. Could please help me to get the details. --- ## [PMP450x System Release 25.1 is now available](https://community.cambiumnetworks.com/t/pmp450x-system-release-25-1-is-now-available/108653)
**Author:** [@Cambium\_Lena](https://community.cambiumnetworks.com/u/Cambium_Lena)\ **Replies:** 0\ **Last updated:** [July 23, 2026, 4:07pm UTC](https://community.cambiumnetworks.com/t/pmp450x-system-release-25-1-is-now-available/108653 "2026-07-23T16:07:18Z")
PMP450x System Release 25.1 is now available at https://support.cambiumnetworks.com/files/pmp450 and it will be available on cnMaestro cloud within 24hours. Warnings, caveats and software upgrade notes Please read the W… --- ## [PMP 450v - different carrier bandwidths](https://community.cambiumnetworks.com/t/pmp-450v-different-carrier-bandwidths/108629)
**Author:** [@Jacob\_Turner](https://community.cambiumnetworks.com/u/Jacob_Turner)\ **Replies:** 5\ **Last updated:** [July 20, 2026, 4:42pm UTC](https://community.cambiumnetworks.com/t/pmp-450v-different-carrier-bandwidths/108629 "2026-07-20T16:42:16Z")
Will it be possible at some point to run different channel bandwidths on carrier 1 and 2 of the 450v at some point? For example, run a 30 or 40 Mhz channel on carrier one and 20+20Mhz on CC 1 and 2 of carrier 2? I feel… --- ## ["Stuck" SM sessions on 24.2](https://community.cambiumnetworks.com/t/stuck-sm-sessions-on-24-2/106403)
**Author:** [@Jacob\_Turner](https://community.cambiumnetworks.com/u/Jacob_Turner)\ **Replies:** 10\ **Last updated:** [July 9, 2026, 11:04pm UTC](https://community.cambiumnetworks.com/t/stuck-sm-sessions-on-24-2/106403 "2026-07-09T23:04:10Z")
We are having an issue in a number of areas on our network where SM sessions will get “stuck” and the customer appears offline. When this occurs, customer traffic stops for the SM, the SM goes “offline” in cnMaestro, an… --- ## [New forum topic on Evo?](https://community.cambiumnetworks.com/t/new-forum-topic-on-evo/108580)
**Author:** [@arobo](https://community.cambiumnetworks.com/u/arobo)\ **Replies:** 0\ **Last updated:** [July 5, 2026, 12:44pm UTC](https://community.cambiumnetworks.com/t/new-forum-topic-on-evo/108580 "2026-07-05T12:44:31Z")
I know its probably way early, but is there a chance we can have a new forum topic on the upcoming Evo line? I would be pretty grateful for any updates from Cambium on Evo - I’m sure there are a lot of WISP operators ou… --- ## [450m 3GHz Frame Utilization](https://community.cambiumnetworks.com/t/450m-3ghz-frame-utilization/108545)
**Author:** [@DigitalMan2020](https://community.cambiumnetworks.com/u/DigitalMan2020)\ **Replies:** 12\ **Last updated:** [June 29, 2026, 11:39pm UTC](https://community.cambiumnetworks.com/t/450m-3ghz-frame-utilization/108545 "2026-06-29T23:39:03Z")
Hi all, gathering data as this is being typed out but have a 450m 3GHz frame utilization shot up to 95% utilization passing only 45mbps in sector. BER has all gone wild as well, never seen this and it’s been running sin… --- ## [450v costs and performance questions](https://community.cambiumnetworks.com/t/450v-costs-and-performance-questions/108525)
**Author:** [@Tim\_Andrist](https://community.cambiumnetworks.com/u/Tim_Andrist)\ **Replies:** 2\ **Last updated:** [June 25, 2026, 2:27pm UTC](https://community.cambiumnetworks.com/t/450v-costs-and-performance-questions/108525 "2026-06-25T14:27:31Z")
Can anyone speak to how their 450v 6Ghz is performing? I’m getting asked to look into it more and I had a few questions on performance and requirements. Is there a management cost for the 6Ghz side? For example needing… --- ## [SM disconnect from Registred AP ( auto restart at SM end )PMP 450](https://community.cambiumnetworks.com/t/sm-disconnect-from-registred-ap-auto-restart-at-sm-end-pmp-450/108523)
**Author:** [@sameer](https://community.cambiumnetworks.com/u/sameer)\ **Replies:** 0\ **Last updated:** [June 17, 2026, 12:11pm UTC](https://community.cambiumnetworks.com/t/sm-disconnect-from-registred-ap-auto-restart-at-sm-end-pmp-450/108523 "2026-06-17T12:11:22Z")
SM disconnect from Registred AP ( auto restart at SM end )PMP 450, did anyone face same issue and How issue solved and one more issue recivied power is good 58 dbm ,max recivie power good 58dbm but signal noise ratio is… --- ## [Maximum EIRP in 5.4 Ghz band in Australia](https://community.cambiumnetworks.com/t/maximum-eirp-in-5-4-ghz-band-in-australia/108511)
**Author:** [@Markus\_Juenemann1](https://community.cambiumnetworks.com/u/Markus_Juenemann1)\ **Replies:** 2\ **Last updated:** [June 15, 2026, 10:07am UTC](https://community.cambiumnetworks.com/t/maximum-eirp-in-5-4-ghz-band-in-australia/108511 "2026-06-15T10:07:09Z")
Hi, I am wondering why the user interface of the PMP-450i limits setting the transmit power in the 5.4 Ghz band to an effective EIRP of just 27 dBm instead of the 30 dBm permitted in Australia. In detail, the gain of t… --- ## [PMP 450m / 450b on CBRS: Repeated SM Disconnects with 16 Registered Subs on One AP](https://community.cambiumnetworks.com/t/pmp-450m-450b-on-cbrs-repeated-sm-disconnects-with-16-registered-subs-on-one-ap/108478)
**Author:** [@john\_hargrove](https://community.cambiumnetworks.com/u/john_hargrove)\ **Replies:** 5\ **Last updated:** [June 5, 2026, 6:36pm UTC](https://community.cambiumnetworks.com/t/pmp-450m-450b-on-cbrs-repeated-sm-disconnects-with-16-registered-subs-on-one-ap/108478 "2026-06-05T18:36:42Z")
I’m troubleshooting a PMP 450m AP (3 GHz CBRS) with 16 registered SMs. The AP is running 24.1.1, and the subscribers are PMP 450b High Gain SMs on 20.3.1.2. Sector details: AP model: PMP 450m AP Band: 3 GHz CBRS … --- ## [SM is not registering to AP (signal fapping 72 to NA](https://community.cambiumnetworks.com/t/sm-is-not-registering-to-ap-signal-fapping-72-to-na/108419)
**Author:** [@sameer](https://community.cambiumnetworks.com/u/sameer)\ **Replies:** 0\ **Last updated:** [May 18, 2026, 7:41am UTC](https://community.cambiumnetworks.com/t/sm-is-not-registering-to-ap-signal-fapping-72-to-na/108419 "2026-05-18T07:41:55Z")
SM is not registering to AP (Keep flapping ) note : out 13 SM to connect AP we tested 4AP with same issue distance 15Km and POWER 48 used at AP . --- ## [450, 450i, 450v Channel Sizes \> 20 Mhz in 5 Ghz](https://community.cambiumnetworks.com/t/450-450i-450v-channel-sizes-20-mhz-in-5-ghz/108391)
**Author:** [@hammer185](https://community.cambiumnetworks.com/u/hammer185)\ **Replies:** 4\ **Last updated:** [May 7, 2026, 10:35pm UTC](https://community.cambiumnetworks.com/t/450-450i-450v-channel-sizes-20-mhz-in-5-ghz/108391 "2026-05-07T22:35:58Z")
Does anyone have real-world test results that would demonstrate a 450i AP running at least 24.2.2 that had been tested with the same set of CPE units with both 20 Mhz, 30 Mhz, and 40 Mhz channel sizes, and was or was not… --- ## [What does the message 'dtrap called by ...' in the Event Log mean?](https://community.cambiumnetworks.com/t/what-does-the-message-dtrap-called-by-in-the-event-log-mean/107618)
**Author:** [@Markus\_Juenemann1](https://community.cambiumnetworks.com/u/Markus_Juenemann1)\ **Replies:** 4\ **Last updated:** [May 5, 2026, 1:09pm UTC](https://community.cambiumnetworks.com/t/what-does-the-message-dtrap-called-by-in-the-event-log-mean/107618 "2026-05-05T13:09:14Z")
Hi, I cannot find any information on what the message ‘dtrap called by …’ in the Event Log mean. Would anyone have an answer? Thanks Markus --- ## [Cambium 450 SM frequencys have disappeared](https://community.cambiumnetworks.com/t/cambium-450-sm-frequencys-have-disappeared/108302)
**Author:** [@Paul\_Cullen](https://community.cambiumnetworks.com/u/Paul_Cullen)\ **Replies:** 3\ **Last updated:** [April 28, 2026, 2:22pm UTC](https://community.cambiumnetworks.com/t/cambium-450-sm-frequencys-have-disappeared/108302 "2026-04-28T14:22:30Z")
Hi Can anyone tell me why cambium seem to have removed some of the frequencys from their subscriber modules? 5735-5742 --- ## [Is the 450i 3G integrated AP being discontinued?](https://community.cambiumnetworks.com/t/is-the-450i-3g-integrated-ap-being-discontinued/108349)
**Author:** [@MiahSchaller](https://community.cambiumnetworks.com/u/MiahSchaller)\ **Replies:** 4\ **Last updated:** [April 24, 2026, 1:36pm UTC](https://community.cambiumnetworks.com/t/is-the-450i-3g-integrated-ap-being-discontinued/108349 "2026-04-24T13:36:03Z")
Is the 450i 3G Integrated Access Point (C030045A002B) being discontinued? It doesn’t appear to be carried by our normal vendors at this time. If so, what is the recommended replacement? --- ## [Love the Product - Need Supply Chain Guidance ASAP](https://community.cambiumnetworks.com/t/love-the-product-need-supply-chain-guidance-asap/108329)
**Author:** [@NSutfin](https://community.cambiumnetworks.com/u/NSutfin)\ **Replies:** 1\ **Last updated:** [April 21, 2026, 5:22pm UTC](https://community.cambiumnetworks.com/t/love-the-product-need-supply-chain-guidance-asap/108329 "2026-04-21T17:22:14Z")
I love the product and moved to the 450 platform a few years back from Radwin 5000 . Now that we have a network we need parts to maintain and I have not been able to get parts from our supplier, which keeps getting pushe… [Next page](https://community.cambiumnetworks.com/c/products/pmp/51.md?page=1)