# Root cause for morse\_cmd\_set\_channel() failed

**URL:** <https://community.morsemicro.com/t/root-cause-for-morse-cmd-set-channel-failed/1889>\
**Category:** General\
**Created:** [July 29, 2026, 11:59am UTC](https://community.morsemicro.com/t/root-cause-for-morse-cmd-set-channel-failed/1889 "2026-07-29T11:59:57Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![arti.rajput](https://avatars.discourse-cdn.com/v4/letter/a/c67d28/32.png) [@arti.rajput](https://community.morsemicro.com/u/arti.rajput)\
**Post date:** [July 29, 2026, 11:59am UTC](https://community.morsemicro.com/t/root-cause-for-morse-cmd-set-channel-failed/1889/1 "2026-07-29T11:59:58Z")

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Hi @ajudge ,

What is the root cause/ significant of this error?  
[491.266188] morse\_usb 2-1:1.0: Command morse\_cmd\_set\_channel 01:7e0 failed with rc -32768 (0xffff8000)  
[491.275626] morse\_usb 2-1:1.0: morse\_mac\_set\_channel (morse\_mac\_change\_channel): morse\_cmd\_set\_channel() failed, ret -32768  
[910.048374] morse\_usb 2-1:1.0: Command morse\_cmd\_set\_channel 01:de0 failed with rc -32768 (0xffff8000)  
[910.060433] morse\_usb 2-1:1.0: morse\_mac\_set\_channel (morse\_mac\_change\_channel): morse\_cmd\_set\_channel() failed, ret -32768  
[1212.079961] morse\_usb 2-1:1.0: Command morse\_cmd\_set\_channel 01:11f0 failed with rc -32768 (0xffff8000)  
[1212.092203] morse\_usb 2-1:1.0: morse\_mac\_set\_channel (morse\_mac\_change\_channel): morse\_cmd\_set\_channel() failed, ret -32768  
[1514.062708] morse\_usb 2-1:1.0: Command morse\_cmd\_set\_channel 01:1600 failed with rc -32768 (0xffff8000)  
[1514.074951] morse\_usb 2-1:1.0: morse\_mac\_set\_channel (morse\_mac\_change\_channel): morse\_cmd\_set\_channel() failed, ret -32768  
[1815.083594] morse\_usb 2-1:1.0: Command morse\_cmd\_set\_channel 01:1a10 failed with rc -32768 (0xffff8000)  
[1815.095812] morse\_usb 2-1:1.0: morse\_mac\_set\_channel (morse\_mac\_change\_channel): morse\_cmd\_set\_channel() failed, ret -32768  
[2117.024329] morse\_usb 2-1:1.0: Command morse\_cmd\_set\_channel 01:1e20 failed with rc -32768 (0xffff8000)  
[2117.036548] morse\_usb 2-1:1.0: morse\_mac\_set\_channel (morse\_mac\_change\_channel): morse\_cmd\_set\_channel() failed, ret -32768  
[2419.055617] morse\_usb 2-1:1.0: Command morse\_cmd\_set\_channel 01:2230 failed with rc -32768 (0xffff8000)  
[2419.067828] morse\_usb 2-1:1.0: morse\_mac\_set\_channel (morse\_mac\_change\_channel): morse\_cmd\_set\_channel() failed, ret -32768  
[2721.055592] morse\_usb 2-1:1.0: Command morse\_cmd\_set\_channel 01:2640 failed with rc -32768 (0xffff8000)  
[2721.067834] morse\_usb 2-1:1.0: morse\_mac\_set\_channel (morse\_mac\_change\_channel): morse\_cmd\_set\_channel() failed, ret -32768

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<div class="post-metadata">

**Author:** ![ajudge](https://avatars.discourse-cdn.com/v4/letter/a/c2a13f/32.png) [@ajudge](https://community.morsemicro.com/u/ajudge)\
**Post date:** [July 30, 2026, 12:55pm UTC](https://community.morsemicro.com/t/root-cause-for-morse-cmd-set-channel-failed/1889/2 "2026-07-30T12:55:36Z")

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Hi @arti.rajput

It’s hard to say without more log context. All this is indicating is that the driver is unable to set a channel and is failing with a bit of a generic error.

My guess at how this might be surfacing is that you are trying to set a channel that is disabled by the BCF. Are you using an MM8108-MF15457? What region? Is DCS enabled?

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**Author:** ![arti.rajput](https://avatars.discourse-cdn.com/v4/letter/a/c67d28/32.png) [@arti.rajput](https://community.morsemicro.com/u/arti.rajput)\
**Post date:** [August 3, 2026, 4:53am UTC](https://community.morsemicro.com/t/root-cause-for-morse-cmd-set-channel-failed/1889/3 "2026-08-03T04:53:18Z")

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> [@ajudge](#):
>
> MF15457

Yes I am using USB MM8108-MF15457 Module.  
The BCF , I am using is  
03bd30e2d3d6ce0a8c3ef930a1454d5a /lib/firmware/morse/bcf\_boardtype\_0807.bin

Region is US and channel is 915 Mhz.  
Please note, this is a random error. While the communication is ongoing between AP and STA I get these error randomly.

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<div class="post-metadata">

**Author:** ![ajudge](https://avatars.discourse-cdn.com/v4/letter/a/c2a13f/32.png) [@ajudge](https://community.morsemicro.com/u/ajudge)\
**Post date:** [August 4, 2026, 7:00am UTC](https://community.morsemicro.com/t/root-cause-for-morse-cmd-set-channel-failed/1889/4 "2026-08-04T07:00:41Z")

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You’re pretty consistently seeing a set channel command every 300s. I wonder if this is being triggered by a background scan selecting a channel that the BCF has disabled.

Can you share any configuration? Is this device an AP or a Client?

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<div class="post-metadata">

**Author:** ![arti.rajput](https://avatars.discourse-cdn.com/v4/letter/a/c67d28/32.png) [@arti.rajput](https://community.morsemicro.com/u/arti.rajput)\
**Post date:** [August 4, 2026, 8:34am UTC](https://community.morsemicro.com/t/root-cause-for-morse-cmd-set-channel-failed/1889/5 "2026-08-04T08:34:10Z")

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I get error on both AP and STA side.

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<div class="post-metadata">

**Author:** ![ajudge](https://avatars.discourse-cdn.com/v4/letter/a/c2a13f/32.png) [@ajudge](https://community.morsemicro.com/u/ajudge)\
**Post date:** [August 11, 2026, 11:54am UTC](https://community.morsemicro.com/t/root-cause-for-morse-cmd-set-channel-failed/1889/6 "2026-08-11T11:54:32Z")

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Can you share the configuration files for both?

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<div class="post-metadata">

**Author:** ![arti.rajput](https://avatars.discourse-cdn.com/v4/letter/a/c67d28/32.png) [@arti.rajput](https://community.morsemicro.com/u/arti.rajput)\
**Post date:** [August 25, 2026, 4:05am UTC](https://community.morsemicro.com/t/root-cause-for-morse-cmd-set-channel-failed/1889/7 "2026-08-25T04:05:28Z")

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Thanks @ajudge for your support.  
The issue is resolved.
