Meraki MR42 radio setup

Installing and Using OpenWrt
1

Hi,

I noticed differences between meraki MR33 and MR42 with link speed, the same devices and the link does not set up at 866 Mb / s maximum and limited at 400 Mb/s 40Mhz. Power and antenna devices checked I use the driver ath10k-firmware-qca99x0-ct-full-htt

obraz
My configuration

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'soc/1b500000.pci/pci0000:00/0000:00:00.0/0000:01:00.0'
	option band '5g'
	option noscan '1'
	option cell_density '1'
	option country 'US'
	option htmode 'VHT80'
	option channel 'auto'

config wifi-iface 'default_radio0'
	option device 'radio0'
	option network 'lan'
	option mode 'ap'
	option ssid 'xxxxxx'
	option key 'xxxxxx'
	option ieee80211r '1'
	option ft_over_ds '0'
	option ft_psk_generate_local '1'
	option short_preamble '0'
	option encryption 'psk2+ccmp'

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'soc/1b700000.pci/pci0001:00/0001:00:00.0/0001:01:00.0'
	option channel 'auto'
	option htmode 'HT40'
	option band '2g'
	option noscan '1'
	option cell_density '2'
	option country 'US'

config wifi-iface 'default_radio1'
	option device 'radio1'
	option network 'lan'
	option mode 'ap'
	option wds '1'
	option ssid 'xxxxxx'
	option key 'xxxxxx'
	option ieee80211r '1'
	option ft_over_ds '0'
	option ft_psk_generate_local '1'
	option dtim_period '50'
	option encryption 'psk-mixed+ccmp'

config wifi-device 'radio2'
	option type 'mac80211'
	option path 'soc/1b900000.pci/pci0002:00/0002:00:00.0/0002:01:00.0'
	option band '2g'
	option htmode 'HT40'
	option channel 'auto'
	option country 'US'
	option cell_density '1'
	option noscan '1'
	option disabled '1'

config wifi-iface 'default_radio2'
	option device 'radio2'
	option mode 'ap'
	option wds '1'
	option key 'xxxxxx'
	option ssid 'xxxxxx'
	option encryption 'psk-mixed'
	option network 'lan'
	option disabled '1'

In theory, the equipment is stronger than the MR33 and the link speed is lower. Any tips?
I find this:

And change driver to no ct and have some improvement with speed but now GUI show propoer rate :smiley: have 866 on my PC rate but GUI show something else and work much better on non ct driver.

obraz
obraz1213×110 12.6 KB

2

BTW, I'm not sure why you say this - but the Wiki says they're different WiFi chips.

???

rate != actual_bandwidth

1 Like
3

Thanks lleachii,

I think I found the reason, apparently it is known with standard ath drivers not CT (10k-firmware-qca99x0)

With them, the MR42 works better for me, and better than MR33 :slight_smile:

4

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