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FS#2079 - MT7621 - lost RX stream #6940

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openwrt-bot opened this issue Jan 23, 2019 · 3 comments
Open

FS#2079 - MT7621 - lost RX stream #6940

openwrt-bot opened this issue Jan 23, 2019 · 3 comments
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@openwrt-bot
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@openwrt-bot openwrt-bot commented Jan 23, 2019

sumsu:

Device: TP-LINK RE350 v1
OpenWRT: 18.06-SNAPSHOOT 22.01.2019
Wireless setup:

config wifi-device 'radio0'
    option type 'mac80211'
    option channel '1'
    option hwmode '11g'
    option path 'pci0000:00/0000:00:00.0/0000:01:00.0'
    option ldpc '1'
    option greenfield '0'
    option diversity '1'
    option htmode 'HT40'
    option country 'PL'
    option log_level '8'
    option disabled '0'
    option legacy_rates '0'
    option noscan '1'

config wifi-iface
    option device 'radio0'
    option mode 'sta'
    option ssid 'XXX'
    option bssid 'xxx'
    option encryption 'psk2'
    option key 'xxx'
    option disassoc_low_ack '0'
    option network 'wan'
    option disabled '0'
    option wmm '1'

config wifi-iface
    option device 'radio0'
    option mode 'ap'
    option ssid 'XXX'
    option encryption 'psk2'
    option key 'xxx'
    option disassoc_low_ack '0'
    option network 'lan'
    option disabled '0'
    option wds '1'
    option wmm '1'

Problem and solution:
AP and STA works on Channel 1. STA few seconds after connection to upstream AP losts RX stream.

Station xx:xx:xx:xx:xx:xx (on wlan0)
    inactive time:  20570 ms
    rx bytes:       222792
    rx packets:     1657
    tx bytes:       1482
    tx packets:     20
    tx retries:     133
    tx failed:      12
    beacon loss:    10
    beacon rx:      756
    rx drop misc:   2
    signal:         -68 [-68, -69] dBm
    signal avg:     -68 [-68, -68] dBm
    beacon signal avg:      188 dBm
    tx bitrate:     43.3 MBit/s MCS 10 short GI
    **rx bitrate:     1.0 MBit/s**
    authorized:     yes
    authenticated:  yes
    associated:     yes
    preamble:       long
    WMM/WME:        yes
    MFP:            no
    TDLS peer:      no
    DTIM period:    2
    beacon interval:100
    short slot time:yes
    connected time: 83 seconds
@openwrt-bot
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@openwrt-bot openwrt-bot commented Jan 29, 2019

nbd:

What does "lost RX stream" mean? Do you have throughput/connectivity issues, or is it just the reported rate?

@openwrt-bot
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@openwrt-bot openwrt-bot commented Feb 4, 2019

sumsu:

Yes, I've connectivity issues. In 1 minute or less after the connection with ap is established it alwayse look the same, rx bitrate goes to 1.0 MBit and I'm unable even to send ping to ap.
I've did some research and I've found out that problem is with 2.4GHz wifi module. Second module (5G) is working OK.
Right now I've installed snapshoot 30.01.2019 and it is working only on 11g band. After 4 days and 21h it is working stable. But it has only 54Mbps. Every time when I enable N band I lost connection. This mean connection to AP is established, but I'm unable to send anything.
My current configuration:
config wifi-device 'radio0'
option type 'mac80211'
option channel '10'
option hwmode '11g'
option path 'pci0000:00/0000:00:00.0/0000:01:00.0'
option greenfield '0'
option diversity '1'
option powersave '0'
option txpower '30'
option country 'US'
option log_level '8'
option disabled '0'
option legacy_rates '0'
option noscan '1'

config wifi-iface
option device 'radio0'
option mode 'ap'
option ssid 'XXXXX'
option encryption 'psk2'
option key 'xxxxxx'
option disassoc_low_ack '0'
option network 'lan'
option disabled '0'
option wds '1'
option wmm '1'

@openwrt-bot
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@openwrt-bot openwrt-bot commented Aug 26, 2019

nbd:

Please try the latest version

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