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FS#4114 - R7800 radio0 (5ghz) is locked at 40 or 153 at 80mhz width #9095

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openwrt-bot opened this issue Oct 29, 2021 · 2 comments
Open

FS#4114 - R7800 radio0 (5ghz) is locked at 40 or 153 at 80mhz width #9095

openwrt-bot opened this issue Oct 29, 2021 · 2 comments
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@openwrt-bot openwrt-bot commented Oct 29, 2021

ansonl:

  • Device problem occurs on Netgear R7800
  • Software versions OpenWRT 21.02.1 r16325-88151b8303
  • Steps to reproduce
  1. Set radio0 (5ghz) channel to any channel that is not 40 or 153 at 80mhz width.
    2a. If the manual channel selection frequency is within the 80mhz width of channels 40 or 153, radio0 will broadcast a wifi network that is actually at 40 or 153 (according to the Channel Analyzer feature).
    2b. If the manual channel selection frequency is outside the above limits, radio0 will be disabled.

I am not sure if this is a hardware limitation of the R7800 or related to DFS but the tested channels should be outside the TDWR frequency range.

dmesg log with a test of the channel set outside the 80mhz width of 40 and 153 (ex: 60, 116, 144) so the radio is disabled. Then the channel is set to 40/153 and it ends up working.

[ 2897.661980] br-lan: port 3(wlan0) entered disabled state
[ 2897.664209] device wlan0 left promiscuous mode
[ 2897.666424] br-lan: port 3(wlan0) entered disabled state
[ 2903.621030] ath10k_pci 0000:01:00.0: 10.4 wmi init: vdevs: 16 peers: 48 tid: 96
[ 2903.621056] ath10k_pci 0000:01:00.0: msdu-desc: 2500 skid: 32
[ 2903.703062] ath10k_pci 0000:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186 msdu-desc: 2500 sw-crypt: 0 ct-sta: 0'
[ 2903.703912] ath10k_pci 0000:01:00.0: wmi print 'free: 84920 iram: 13156 sram: 11224'
[ 2904.090785] ath10k_pci 0000:01:00.0: rts threshold -1
[ 2904.091643] ath10k_pci 0000:01:00.0: Firmware lacks feature flag indicating a retry limit of > 2 is OK, requested limit: 4
[ 2910.104019] ath10k_pci 0000:01:00.0: 10.4 wmi init: vdevs: 16 peers: 48 tid: 96
[ 2910.104045] ath10k_pci 0000:01:00.0: msdu-desc: 2500 skid: 32
[ 2910.186082] ath10k_pci 0000:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186 msdu-desc: 2500 sw-crypt: 0 ct-sta: 0'
[ 2910.186928] ath10k_pci 0000:01:00.0: wmi print 'free: 84920 iram: 13156 sram: 11224'
[ 2910.573428] ath10k_pci 0000:01:00.0: rts threshold -1
[ 2910.573700] ath10k_pci 0000:01:00.0: Firmware lacks feature flag indicating a retry limit of > 2 is OK, requested limit: 4
[ 2910.579716] br-lan: port 3(wlan0) entered blocking state
[ 2910.588492] br-lan: port 3(wlan0) entered disabled state
[ 2910.594228] device wlan0 entered promiscuous mode
[ 2910.920831] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 2910.921053] br-lan: port 3(wlan0) entered blocking state
[ 2910.926269] br-lan: port 3(wlan0) entered forwarding state

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@openwrt-bot openwrt-bot commented Oct 30, 2021

dlogic:

I am unable to activate radio for any other channels aside from 36 and 40, as well.

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@openwrt-bot openwrt-bot commented Oct 30, 2021

dlogic:

So, after I updated the Country Code from World to United States, I was able to select channel 120.

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