xv2-21X - another example of bad testing

Today it’s time to test another Cambium baby from the WiFi6 series. I fell for the 3rd and probably the last time - it will be a VERY LONG BREAK FROM SHOPPING!

XV2-21X - outdoor setting enabled (so system will use channels 100 upwards) - DON’T WORK, channels 100 above are not implemented.
Let me remind you that it was the same with xv2-2 !!!
You are repeating mistakes from over 2 years ago!!

WHO IS RESPONSIBLE FOR TESTING THERE? HOW LONG WILL PRODUCTS UNTESTED AND WITH SUCH DEFAULTS BE ON SALE?

Thank God I couldn’t get a tender for a hotel where I was supposed to use xv2-21X and xv2-22H!!!
I would burn with shame in front of a client.

What breaks me down is the repair of these errors, which for other producers takes a few to several days, for you it takes months.

I’m afraid to test the NSE3000 because there will probably be the same problems.

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Im having major issues with the XV2-2T0/2T1 and the 21X. I have a current deployment at the commercial business that no client devices can connect or stay connected and the devices that do connect to the AP’s just bounce back and forth between the 2.4 and 5 ghz channels. It as if AP’s are kicking devices off just for fun. I set up a single AP in my LAB to test with no interference and the problem is so bad, I have to keep plugging my Mikrotik AP back in, just to get to the internet to complain about this. I have deployment of about 15 AP’s that now i am getting ready to tear it all down and accept the loss of this job.

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Exactly the same thing happened when I bought the xv2-2 about 2 years ago. Identical symptoms. From this it follows that the new soft is written based on some archaic versions of the repository and old errors are repeated.
This is so sad :frowning:

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Channel 100 and above are available as per country regulations. Channel 100 will be available for FCC and ETSI regulatory after getting DFS certification for these devices.

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Date of production 30.08.2022. You are still waiting for certification ? Wow ?
Why this device is insale ?
Why u lie in the documentations ?

You launch the product on the market by writing in the leaflet that you have such certificates.
Where are they ?


Is it such a new habit at Cambium to release a product that does not match the entry in the pdf file?
Without certification?
So we buy a car on 3 wheels, but the documentation says it has 4 :slight_smile:
Well done!

As per my knowledge, we have added support in the 6.2 release, Please verify with the latest image(6.5.1-r11) and channels 100-140 should be available in XV2-2.

No the newest firmware do not support DFS channels at etsi. No test no knowladge :rofl::rofl::rofl:

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Note: FCC, IC, EU DFS channels not supported in first release

→ such a sentence is included in the pdf.

And now a curiosity.
According to the support page, the first release was October 22, 2022. It’s February 2023. When will the “first release” end after a year?

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Hi Pshemo,

Please find the DFS channel status as requested with 6.5.1-r11. We will add support DFS channel in the upcoming release after getting the certification
image

For example, you send information to Hamina about the ranges with the ability to use DFS channels in the ESTI region. I’m doing a project, and then a surprise - “We’ll turn it on when we get the certificate”.
So we don’t know when :slight_smile:
Good news :slight_smile:

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Let me check internally and will update the expected timeline.

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Sometimes you have to make the difficult decision to postpone the release of a product when it is unusable.
Unfortunately, the word DEADLINE ruins such activities in any corporation.
The consequence of this action are such duds as xv2-21 and xv2-22.

This is BAD, and I’m waiting for ~30 xv2-21 for a project.

And they do is EOL other products to force you to get the new APs, and they won’t work in harmony with others then. This connect disconnect is bugging me also. The AP blocks clients in e400 and this xv2 21x has very low power compared to 400 . And making all kinds of messes .
It goes to zero config IP . Which then goes offline. Cuts off the clients and we keep connecting back but sometimes after ,4-5 tried attempts you’ll get to the mount peak… but other times it limits the speeds if connected . And then even with the auto rf off roaming off. Multiple things off it won’t work fine.
Plus the support is awesome. Email them . A line sentence and wait for the answer until two days.

Used many companies I found rujiee reye their support is good. But devices lacks a lot.
Mikrotik all in all a thesaurus after that ros 7 update it won’t work properly on a bridge mode.
I took everything just for cambium to remain active . Tried new settings. Septated the AP.
These are overly engineered capable devices but every brand has limitations. It’s not our fault but they won’t even have a look try ruijee support. You don’t want the help but they’ll do it for you :stuck_out_tongue_winking_eye: and here. Onboard then same types groups then control plane is the cloud managed, devices hides themselves.
I really hope they’ll do everything in their domain to better understand the customer needs and wants, then their design is robust their Conn is great. So it should be in their bandwidth to get to a solution.
And the part I hated the most is still EOL products no suport had they ever given any suport , it’s just your going with the flow.

Plus country codes issues alo. Some has paki others don’t. The cloud has paki since ages. Internet has time zone since ages. But xv2 gets a zone while other is EOL. Errors or no errors change them then they’ll be able to help .

Guys, are XV2-21X DFS Channels still not available? We couldn’t choose these in any region.
Where to check?

@Pavel_Glukhovchenko1
Software version 7.1 supports DFS for XV2-21X:

Device > sh version 
Ceiling-XV2-21X-E5387D XV2-21X Two Radio Dual Band Wi-Fi 6 2x2 Indoor Access Point
Regulatory domain FCC
Software version 7.1-r7
Build date 2025-06-10T10:46:00+00:00
Device-Agent version 4.164
Serial number W6YH002NQ69Z
Copyright (c) 2014-2025 Cambium Networks, Inc.
System is up 0 days, 00 hours 09 minutes
Device MAC address is B4-A2-5C-E5-38-7D
Device > sh wireless radio channels us 
 Interface: radio1 Band=2.4GHz Country: United States (US)
 CHANNEL    FREQUENCY(MHz)  MAX-POWER    EIRP
 1             2412            27        36    
 2             2417            27        36    
 3             2422            27        36    
 4             2427            27        36    
 5             2432            27        36    
 6             2437            27        36    
 7             2442            27        36    
 8             2447            27        36    
 9             2452            27        36    
 10            2457            27        36    
 11            2462            27        36    
 Interface: radio2 Band=5GHz Country: United States (US)
 CHANNEL    FREQUENCY(MHz)  MAX-POWER    EIRP
 36            5180            24        30    
 40            5200            24        30    
 44            5220            24        30    
 48            5240            24        30    
 52            5260            24        30    
 56            5280            24        30    
 60            5300            24        30    
 64            5320            24        30    
 100           5500            24        30    
 104           5520            24        30    
 108           5540            24        30    
 112           5560            24        30    
 116           5580            24        30    
 120           5600            24        30    
 124           5620            24        30    
 128           5640            24        30    
 132           5660            24        30    
 136           5680            24        30    
 140           5700            24        30    
 149           5745            27        36    
 153           5765            27        36    
 157           5785            27        36    
 161           5805            27        36    
 165           5825            27        36    
 169           5845            27        36    
 173           5865            27        36    
 177           5885            27        36    
Device > sh wireLESS RADIOS 
 PROFILE-ID MAC                BAND   MODE  STREAM CHANNEL  STATE CHANNEL-WIDTH CHANNEL-SELECTION POWER CLIENTS WLANS RADARS-DETECTED MESH PRIMARY+BONDS
 1          B4-A2-5C-70-41-E0  2.4GHz 11axg 2      auto     OFF   20            auto              0     0       0     0               OFF      
 2          B4-A2-5C-70-41-F0  5GHz   11axa 2      100      ON    40            static            24    0       7     0               OFF  100+104
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yes confirmed! it is