CBW150-AX both APs are stuck at 15 dBm at 100% transmit power

[auth1337]

Hi there,

My 2 APs CBW150AX-E-UK are stuck at 15 dBm for 2.4GHz transmit power even if setting is set at 100%.

5GHz works fine at 20 dBm.

FW is the latest. Tried changing almost all possible settings with no luck.

Any ideas will be greatly appreciated.

[marce1000]

 - Are you using a correct POE-injector and country compliant (according to your country) ?

 M.

[auth1337]

Hey @marce1000 . It’s powered with CBS110-16PP-EU. As per compliance - was there supposed to be a link in your message? 

[marce1000]

               - No sorry  for the confusion  . 

 M.

[marce1000]

 - Added reply ; check logs on the AP just after boot , and also after trying to change power ; look for errors , if any , 

 M.

[auth1337]

No idea what's happening. Posted 2 times with the same result - post disappears

@KJK99I have optimization disabled, enalbing/disabling does nothing.

@marce1000 @johnmolina Nothing meaningful in the logs, but here is what I found in the support dump:

Radio Info Summary:
=======================
Radio: 2.4GHz
Carrier Set: (-E) United Kingdom ( GB )
Base radio MAC: X
Supported Channels:
1 2 3 4 5 6 7 8 9 10 11 12 13
Configured Frequency: (Slot 0) 2462MHz Channel:11 20MHz
Radio Mode: FlexConnect
Radio SubType: Main
FRA Capable: False
Serving Frequency: (Slot 0) 2462Mhz Channel: 11 20MHz
Configured TX Antenna Selection: [ a b ]
Configured RX Antenna Selection: [ a b ]
Number of Transmit Antennas: 2
Configured Antenna Gain(dBi): 3
Legal Antenna Gain in use(dBi): 4
Configured Level: 1
Configured TxPower(dBm): 15
Total Supported Power Levels:8
Allowed total powers(dBm):
15 12 9 6 3 0 -3 -6
Allowed per-path powers(dBm):
12 9 6 3 0 -3 -6 -9

Radio Info Summary:
=======================
Radio: 5.0GHz
Carrier Set: (-E) United Kingdom ( GB )
Base radio MAC: X
Supported Channels:
36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140
Configured Frequency: (Slot 1) 5500MHz Channel:100 80MHz
Radio Mode: FlexConnect
Radio SubType: Main
FRA Capable: False
Serving Frequency: (Slot 1) 5500Mhz Channel: 100 80MHz
Configured TX Antenna Selection: [ a b ]
Configured RX Antenna Selection: [ a b ]
Number of Transmit Antennas: 2
Configured Antenna Gain(dBi): 5
Legal Antenna Gain in use(dBi): 5
Configured Level: 1
Configured TxPower(dBm): 20
Total Supported Power Levels:8
Allowed total powers(dBm):
20 17 14 11 8 5 2 -1
Allowed per-path powers(dBm):
17 14 11 8 5 2 -1 -4

It's very confusing as I know that UK allows up to 100 mW (20 dBm) on 2.4. Any thoughts?

[johnmolina]

It sounds like a frustrating issue. I've had similar problems before, and here are a few things that worked for me:

Double-check that the regulatory domain is set correctly for the UK. Sometimes, this can limit the power settings.

Ensure there’s no interference from other devices on the 2.4GHz band. Using a WiFi analyzer app can help find a less crowded channel.

Try setting the transmit power manually to just below 100%, like 90%. Sometimes this can bypass restrictions.

If you haven't already, reset the APs to factory settings and reconfigure them. It can clear out any glitches.

Hope this helps!

[KJK99]

My CBW150AX shows even lower transmit power and I'm in Canada. I did not look into it since and I think it is a result of the RF Optimalization which I have turned on. The AP works just fine.

[auth1337]

Correcting myself.

[auth1337]

So I am still fighting with this issue as I have a spot where I desperately need 20 dBm. I have tested/tried everything I could and the only explanation so far is that antenna gain is set to 3 on 2.4:

Configured Antenna Gain(dBi): 3
Legal Antenna Gain in use(dBi): 4

CBW Software doesn't allow to change this anywhere. The only place where it's actually mentioned is tech_support. Any ideas?