LinkSys 3200ACM Wi-Fi Channels

Installing and Using OpenWrt Network and Wireless Configuration
1

Hello,

Good Morning, I have a query with regards to the channel allocation on 802.11 ac with 80mhz bandwidth. The router is a linksys 3200 acm. Basically the issue Is that if I configure channels other then 36 to 48 the WiFi won't broadcast the ssid. I tried them on both radios supporting 5ghz.

Any ideas ? I'm running the lastest stable release. Was thinking of upgrading to a snapshot release but first I would like to see your views.

Thanks,
Et

2

Any ideas please as im rather lost

3

Have you set the country code to your country? WiFi functionality is limited if the country is not set.

4

What is the output of "iw reg get"?
Have you removed the kernel module for the third radio?
Or configured it on the same country as radio 0 and radio 1?

5

Hello,

The third radio I didnt configure any said but I didn't delete anything related to the kernel . Can you advice please? I have a linksys 1900ac v2 it works fine with all channels

Thanks for you assistance

6 
root@OpenWrt:~# iw reg get
global
country 98: DFS-UNSET
        (2400 - 2472 @ 40), (N/A, 20), (N/A)
        (5150 - 5250 @ 100), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
        (5250 - 5350 @ 100), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
        (5470 - 5725 @ 160), (N/A, 23), (0 ms), DFS
        (5725 - 5730 @ 5), (N/A, 13), (0 ms), DFS
        (5730 - 5850 @ 80), (N/A, 13), (N/A)
        (57240 - 66000 @ 2160), (N/A, 40), (N/A)

phy#2
country US: DFS-FCC
        (2400 - 2472 @ 40), (N/A, 30), (N/A)
        (5150 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
        (5250 - 5350 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
        (5470 - 5730 @ 160), (N/A, 23), (0 ms), DFS
        (5730 - 5850 @ 80), (N/A, 30), (N/A)
        (57240 - 71000 @ 2160), (N/A, 40), (N/A)

phy#1
country FR: DFS-ETSI
        (2400 - 2483 @ 40), (N/A, 20), (N/A)
        (5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
        (5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
        (5470 - 5725 @ 160), (N/A, 26), (0 ms), DFS
        (5725 - 5875 @ 80), (N/A, 13), (N/A)
        (57000 - 66000 @ 2160), (N/A, 40), (N/A)

phy#0
country FR: DFS-ETSI
        (2400 - 2483 @ 40), (N/A, 20), (N/A)
        (5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
        (5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
        (5470 - 5725 @ 160), (N/A, 26), (0 ms), DFS
        (5725 - 5875 @ 80), (N/A, 13), (N/A)
        (57000 - 66000 @ 2160), (N/A, 40), (N/A)

###############################################################

Wireless Config


###############################################################


config wifi-device 'radio0'
        option type 'mac80211'
        option hwmode '11a'
        option path 'soc/soc:pcie/pci0000:00/0000:00:01.0/0000:01:00.0'
        option legacy_rates '0'
        option htmode 'VHT80'
        option channel '36'
        option country 'MT'

config wifi-device 'radio1'
        option type 'mac80211'
        option channel '11'
        option hwmode '11g'
        option path 'soc/soc:pcie/pci0000:00/0000:00:02.0/0000:02:00.0'
        option htmode 'HT20'
        option legacy_rates '0'
        option country 'MT'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option key 'xxxxxxxxxx'
        option ssid 'I Believe Wi Can Fi'
        option encryption 'psk2'

config wifi-device 'radio2'
        option type 'mac80211'
        option hwmode '11a'
        option path 'platform/soc/soc:internal-regs/f10d8000.sdhci/mmc_host/mmc0/mmc0:0001/mmc0:0001:1'
        option legacy_rates '0'
        option htmode 'VHT20'
        option channel 'auto'

config wifi-iface 'wifinet2'
        option ssid 'LetMeIN'
        option encryption 'psk2'
        option device 'radio0'
        option ieee80211r '1'
        option key 'xxxxxxxxxx'
        option network 'lan'
        option mode 'ap'
        option ft_psk_generate_local '1'
        option mobility_domain 'ff69'
        option ft_over_ds '1'

If i had to change anything other then channel 36 from the Radio0, the changes would be applied correctly but the ssid would not be beaconed.

Regards,
Et

7

Radio 2 is configured to US, while radio 0 is configured to FR. This confuses the drivers, and blocks many channels.

Either configure radio 2 to FR, or disable it entirely.

8

If you see the config both are set to MT! Whats more confusing. How can I change them ?

config wifi-device 'radio1'
option type 'mac80211'
option channel '11'
option hwmode '11g'
option path 'soc/soc:pcie/pci0000:00/0000:00:02.0/0000:02:00.0'
option htmode 'HT20'
option legacy_rates '0'
option country 'MT'

config wifi-device 'radio0'
option type 'mac80211'
option hwmode '11a'
option path 'soc/soc:pcie/pci0000:00/0000:00:01.0/0000:01:00.0'
option legacy_rates '0'
option htmode 'VHT80'
option channel '36'
option country 'MT'
9

The country for radio 0 and 1 is hardcoded, and the firmware ignores whatever you configure.

10

So how can I change it if the issue is different country codes on the radios? If one is US and the other FR

Regards,
Et

11

What is the solution then?

12

Remove / disable third radio, try to change CC on others, see readme. Prettry sure the search function in the forum works as well.

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