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Adjusted channel spec occurring multiple times an hour?

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slvrscoobie

Regular Contributor
Hi All,
I have an AC3100 and an AC1900 in Ai Mesh mode connected via Gigabit.
Last week we had a day long power outage, and since then Ive been having issues with internet speeds, connectivity and such. I have a lot of devices on my 2.4 band (bulbs, switches, couple low bandwidth cameras) but until the power outage it seemed ok. Ive noticed this in my logs a LOT recently.
I set the 2.4 band to Auto channel, its set on 20/40mhz as it was. even tried to reduce the RTS threshold to 1024 to see if that would help in 'congested areas'.
Ive hard rebooted them, main router first and left the node off till the main was backup.
Also turned off wifi on both and turned back on.
5ghz seems ok although some devices are getting connected to the node instead of the main router which is odd due to their locations.
Thoughts?

Jul 9 03:22:39 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:22:39 acsd: selected channel spec: 0x100b (11)
Jul 9 03:22:40 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 03:22:41 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
Jul 9 03:23:52 acsd: selected channel spec: 0x100b (11)
Jul 9 03:23:52 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:23:52 acsd: selected channel spec: 0x100b (11)
Jul 9 03:23:52 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 03:23:55 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
Jul 9 03:30:39 acsd: selected channel spec: 0x100b (11)
Jul 9 03:30:39 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:30:39 acsd: selected channel spec: 0x100b (11)
Jul 9 03:38:34 acsd: selected channel spec: 0x100b (11)
Jul 9 03:38:34 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:38:34 acsd: selected channel spec: 0x100b (11)
Jul 9 03:41:27 acsd: selected channel spec: 0x100b (11)
Jul 9 03:41:27 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:41:27 acsd: selected channel spec: 0x100b (11)
Jul 9 03:41:28 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 03:41:32 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
...
Jul 9 08:43:16 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:43:16 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 08:43:16 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:44:43 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:44:43 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 08:44:43 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:44:44 acsd: eth1: NONACSD channel switching to channel spec: 0x1001 (1)
Jul 9 08:44:49 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
Jul 9 08:46:16 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:46:16 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 08:46:16 acsd: selected channel spec: 0x1001 (1)
 
slvrscoobie said:
Hi All,
I have an AC3100 and an AC1900 in Ai Mesh mode connected via Gigabit.
Last week we had a day long power outage, and since then Ive been having issues with internet speeds, connectivity and such. I have a lot of devices on my 2.4 band (bulbs, switches, couple low bandwidth cameras) but until the power outage it seemed ok. Ive noticed this in my logs a LOT recently.
I set the 2.4 band to Auto channel, its set on 20/40mhz as it was. even tried to reduce the RTS threshold to 1024 to see if that would help in 'congested areas'.
Ive hard rebooted them, main router first and left the node off till the main was backup.
Also turned off wifi on both and turned back on.
5ghz seems ok although some devices are getting connected to the node instead of the main router which is odd due to their locations.
Thoughts?

Jul 9 03:22:39 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:22:39 acsd: selected channel spec: 0x100b (11)
Jul 9 03:22:40 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 03:22:41 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
Jul 9 03:23:52 acsd: selected channel spec: 0x100b (11)
Jul 9 03:23:52 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:23:52 acsd: selected channel spec: 0x100b (11)
Jul 9 03:23:52 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 03:23:55 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
Jul 9 03:30:39 acsd: selected channel spec: 0x100b (11)
Jul 9 03:30:39 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:30:39 acsd: selected channel spec: 0x100b (11)
Jul 9 03:38:34 acsd: selected channel spec: 0x100b (11)
Jul 9 03:38:34 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:38:34 acsd: selected channel spec: 0x100b (11)
Jul 9 03:41:27 acsd: selected channel spec: 0x100b (11)
Jul 9 03:41:27 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:41:27 acsd: selected channel spec: 0x100b (11)
Jul 9 03:41:28 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 03:41:32 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
...
Jul 9 08:43:16 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:43:16 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 08:43:16 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:44:43 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:44:43 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 08:44:43 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:44:44 acsd: eth1: NONACSD channel switching to channel spec: 0x1001 (1)
Jul 9 08:44:49 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
Jul 9 08:46:16 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:46:16 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 08:46:16 acsd: selected channel spec: 0x1001 (1)
Click to expand...


Maybe try setting your 2.4 channel width to 20mhz?
See what difference (if any) you get in the log then, as it will eliminate some possible interference.
 
slvrscoobie said:
Hi All,
I have an AC3100 and an AC1900 in Ai Mesh mode connected via Gigabit.
Last week we had a day long power outage, and since then Ive been having issues with internet speeds, connectivity and such. I have a lot of devices on my 2.4 band (bulbs, switches, couple low bandwidth cameras) but until the power outage it seemed ok. Ive noticed this in my logs a LOT recently.
I set the 2.4 band to Auto channel, its set on 20/40mhz as it was. even tried to reduce the RTS threshold to 1024 to see if that would help in 'congested areas'.
Ive hard rebooted them, main router first and left the node off till the main was backup.
Also turned off wifi on both and turned back on.
5ghz seems ok although some devices are getting connected to the node instead of the main router which is odd due to their locations.
Thoughts?

Jul 9 03:22:39 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:22:39 acsd: selected channel spec: 0x100b (11)
Jul 9 03:22:40 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 03:22:41 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
Jul 9 03:23:52 acsd: selected channel spec: 0x100b (11)
Jul 9 03:23:52 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:23:52 acsd: selected channel spec: 0x100b (11)
Jul 9 03:23:52 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 03:23:55 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
Jul 9 03:30:39 acsd: selected channel spec: 0x100b (11)
Jul 9 03:30:39 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:30:39 acsd: selected channel spec: 0x100b (11)
Jul 9 03:38:34 acsd: selected channel spec: 0x100b (11)
Jul 9 03:38:34 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:38:34 acsd: selected channel spec: 0x100b (11)
Jul 9 03:41:27 acsd: selected channel spec: 0x100b (11)
Jul 9 03:41:27 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 03:41:27 acsd: selected channel spec: 0x100b (11)
Jul 9 03:41:28 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 03:41:32 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
...
Jul 9 08:43:16 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:43:16 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 08:43:16 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:44:43 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:44:43 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 08:44:43 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:44:44 acsd: eth1: NONACSD channel switching to channel spec: 0x1001 (1)
Jul 9 08:44:49 acsd: eth1: NONACSD channel switching to channel spec: 0x1806 (4l)
Jul 9 08:46:16 acsd: selected channel spec: 0x1001 (1)
Jul 9 08:46:16 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 08:46:16 acsd: selected channel spec: 0x1001 (1)
Click to expand...

I've had some excessive scanning logged with the latest firmware on my 2x86U AiMesh noted here. I disabled Smart Connect and reverted to separate SSIDs. An advantage of not using Smart Connect is being able to fix the WiFi channels being used.

Since your AC1900 does not support Smart Connect, I assume you are not using it and are using separate SSIDs... so your issue may be unrelated (?).

OE
 
Treadler said:
Maybe try setting your 2.4 channel width to 20mhz?
See what difference (if any) you get in the log then, as it will eliminate some possible interference.
Click to expand...
I did this but im still getting these logs about switching.
Jul 9 10:16:14 rc_service: cfg_server 11337:notify_rc restart_wireless
Jul 9 10:16:24 acsd: selected channel spec: 0x100b (11)
Jul 9 10:16:24 acsd: Adjusted channel spec: 0x100b (11)
Jul 9 10:16:24 acsd: selected channel spec: 0x100b (11)
Jul 9 10:16:29 acsd: eth1: NONACSD channel switching to channel spec: 0x100b (11)
Jul 9 10:28:30 acsd: selected channel spec: 0x1001 (1)
Jul 9 10:28:30 acsd: Adjusted channel spec: 0x1001 (1)
Jul 9 10:28:30 acsd: selected channel spec: 0x1001 (1)
Jul 9 10:28:31 acsd: eth1: NONACSD channel switching to channel spec: 0x1001 (1)
Im also getting tons of dropped connections on my cameras now.
 
You could just manually choose a channel instead of using "Auto" to avoid the problem altogether.
 
ColinTaylor said:
You could just manually choose a channel instead of using "Auto" to avoid the problem altogether.
Click to expand...

Good and to the point! "Auto" is likely the issue (which Smart Connect forces the use of)... well, here anyways.

OE
 
I switched back to manual, but noticed on another post that 40mhz is best on channel 11. I set the channel and bandwidth to that, and seems to have stopped a lot of the issues.
 
slvrscoobie said:
I switched back to manual, but noticed on another post that 40mhz is best on channel 11. I set the channel and bandwidth to that, and seems to have stopped a lot of the issues.
Click to expand...

If you live in congested area, using 40 MHz is not recommended, will have better performance with 20.
 
slvrscoobie said:
I switched back to manual, but noticed on another post that 40mhz is best on channel 11. I set the channel and bandwidth to that, and seems to have stopped a lot of the issues.
Click to expand...

2.4 GHz channels 1, 6, and 11 at 20 MHz do not overlap/interfere... that is the recommended band usage, especially in congested and commercial applications with many radios broadcasting.

OE
 
slvrscoobie said:
... but noticed on another post that 40mhz is best on channel 11.
Click to expand...
40MHz can be used with ANY channel!
But you have to look if it is used at your location by others and which channels are usable for you.
If you are in US and can use only 1-6-11 then if other Wifi is seen strong on ch. 6 you will have problems, as you would need 1+5 or 11+7 for your 40MHz bandwith.
20MHz on ch. 6 uses ch. 4-8 as each channel is defined with 5MHz bandwith.
 
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