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Can't change channels on Ubiquiti Rocket M3

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Wed, 07/02/2025 - 20:59
#1
KN6RVU
Can't change channels on Ubiquiti Rocket M3
Updated firmware to 3.25.5.1 on a Ubiquiti Rocket M3 and the channel switch from 86 (3.430 GHz) to 76 (3.380 GHz).  Can change Channel Width and Transmit Power, but not Channel.  Shows selection but doesn't change.
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Wed, 07/02/2025 - 21:40
K5RA
Bandwidth?
If your bandwidth is more than 10 MHz, maybe firmware will prevent you from operating out of band.
Maybe try Channel away from band edge.
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Thu, 07/03/2025 - 11:54
K6CCC
K6CCC's picture
Confirmed
Confirmed.  Also note that the channel number does not show - only the frequency in the selection.
 
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Thu, 07/03/2025 - 12:37
K6CCC
K6CCC's picture
Fixed in NB 20250703
As part of my troubleshooting, updated my three Rocket M3 nodes from 3.25.5.1 (where I confirmed the problem) or NB 20260623 to NB 20250703 and it appears that this problem has been resolved.

I have three M3 nodes at my house:  Node 1 <2 foot path> Node 2 <50 foot path> Node 3 - all on channel 84 (3415 - 3425 MHz).
Node 1 was 3.25.5.1 and has dummy loads for antennas.  Configured as Mesh station.
Node 2 was NB 20250623 and has helical stubby antennas.  Configured as Mesh PtMP
Node 3 was NB 20250623 and has the driven portion only of a UBNT RocketDish.  Configured as Mesh station.

Initially attempted to change channels on Node 1 and observed the same thing KN6RVU did.  Even after a reboot, Node  showed channel 84 and continued to communicate with Node 2.

Updated all three nodes to NB 20250703 and now I can change a channel and the link fails since the other end of the path is still on the original channel.
 
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Thu, 07/03/2025 - 18:32
KN6RVU
Thank you
Update solved the problem.
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