Hi, I am using the same USB wifi adapter Edimax EW-7811UN Wifi adapter. I have the same issue and the wifi keep consistently get deauthenticated and need to reconnect to the network quite often.
Please kindly find the info below:
dmesg output:
[ 31.690934] tegradc tegradc.0: unblank
[ 31.690944] tegradc tegradc.1: blank - powerdown
[ 1385.000408] wlan0: deauthenticating from 60:a4:4c:66:b8:2f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 1387.173242] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 1387.195452] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 1387.297959] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 1387.359442] wlan0: authenticated
[ 1387.362087] wlan0: associate with 60:a4:4c:66:b8:2f (try 1/3)
[ 1387.399270] wlan0: RX AssocResp from 60:a4:4c:66:b8:2f (capab=0x411 status=0 aid=5)
[ 1387.408158] wlan0: associated
[ 2896.678552] wlan0: deauthenticating from 60:a4:4c:66:b8:2f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 2898.733466] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 2898.758672] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 2898.862788] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 2898.899651] wlan0: authenticated
[ 2898.902740] wlan0: associate with 60:a4:4c:66:b8:2f (try 1/3)
[ 2898.907560] wlan0: RX AssocResp from 60:a4:4c:66:b8:2f (capab=0x411 status=0 aid=5)
[ 2898.912125] wlan0: associated
[ 3488.115940] wlan0: deauthenticating from 60:a4:4c:66:b8:2f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 3488.237926] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 3489.255011] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 3489.267260] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 3489.291566] wlan0: authenticated
[ 3489.295277] wlan0: associate with 60:a4:4c:66:b8:2f (try 1/3)
[ 3489.338120] wlan0: RX AssocResp from 60:a4:4c:66:b8:2f (capab=0x411 status=0 aid=5)
[ 3489.348665] wlan0: associated
[ 3489.377332] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 4392.111762] wlan0: deauthenticating from 60:a4:4c:66:b8:2f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 4394.241951] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4394.261431] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4394.363553] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4394.467699] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4394.571569] wlan0: authentication with 60:a4:4c:66:b8:2f timed out
[ 4395.698711] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4395.715845] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4395.715904] wlan0: authenticated
[ 4395.719734] wlan0: associate with 60:a4:4c:66:b8:2f (try 1/3)
[ 4395.823585] wlan0: associate with 60:a4:4c:66:b8:2f (try 2/3)
[ 4395.927557] wlan0: associate with 60:a4:4c:66:b8:2f (try 3/3)
[ 4396.031538] wlan0: association with 60:a4:4c:66:b8:2f timed out
[ 4397.527130] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4397.549818] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4397.651580] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4397.755819] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4397.859976] wlan0: authentication with 60:a4:4c:66:b8:2f timed out
[ 4399.882807] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4399.904950] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4400.007595] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4400.111573] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4400.215568] wlan0: authentication with 60:a4:4c:66:b8:2f timed out
[ 4410.226147] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4410.240353] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4410.308822] wlan0: authenticated
[ 4410.311338] wlan0: associate with 60:a4:4c:66:b8:2f (try 1/3)
[ 4410.415253] wlan0: associate with 60:a4:4c:66:b8:2f (try 2/3)
[ 4410.519235] wlan0: associate with 60:a4:4c:66:b8:2f (try 3/3)
[ 4410.623319] wlan0: association with 60:a4:4c:66:b8:2f timed out
[ 4418.060414] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4418.084736] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4418.187087] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4418.291119] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4418.395129] wlan0: authentication with 60:a4:4c:66:b8:2f timed out
[ 4426.019549] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 4428.090249] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4428.112404] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4428.214874] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4428.319254] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4428.423141] wlan0: authentication with 60:a4:4c:66:b8:2f timed out
[ 4439.461238] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4439.480939] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4439.582921] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4439.686713] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4439.790653] wlan0: authentication with 60:a4:4c:66:b8:2f timed out
[ 4451.061026] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 4452.128811] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4452.140305] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4452.242757] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4452.346570] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4452.450595] wlan0: authentication with 60:a4:4c:66:b8:2f timed out
[ 4466.877784] rtl8192cu: MAC auto ON okay!
[ 4466.912974] rtl8192cu: Tx queue select: 0x05
[ 4467.334543] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 4467.403519] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 4468.461487] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4468.473844] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4468.574143] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4468.678154] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4468.708564] wlan0: authenticated
[ 4468.714157] wlan0: associate with 60:a4:4c:66:b8:2f (try 1/3)
[ 4468.818576] wlan0: associate with 60:a4:4c:66:b8:2f (try 2/3)
[ 4468.922954] wlan0: associate with 60:a4:4c:66:b8:2f (try 3/3)
[ 4469.026403] wlan0: association with 60:a4:4c:66:b8:2f timed out
[ 4470.140790] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4470.160482] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4470.262273] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4470.366248] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4470.470144] wlan0: authentication with 60:a4:4c:66:b8:2f timed out
[ 4472.011558] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4472.032107] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4472.032202] wlan0: authenticated
[ 4472.034042] wlan0: associate with 60:a4:4c:66:b8:2f (try 1/3)
[ 4472.138151] wlan0: associate with 60:a4:4c:66:b8:2f (try 2/3)
[ 4472.242259] wlan0: associate with 60:a4:4c:66:b8:2f (try 3/3)
[ 4472.345997] wlan0: association with 60:a4:4c:66:b8:2f timed out
[ 4474.382420] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 4474.402706] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 4474.505986] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 4474.610017] wlan0: send auth to 60:a4:4c:66:b8:2f (try 3/3)
[ 4474.677600] wlan0: authenticated
[ 4474.682142] wlan0: associate with 60:a4:4c:66:b8:2f (try 1/3)
[ 4474.786078] wlan0: associate with 60:a4:4c:66:b8:2f (try 2/3)
[ 4474.807421] wlan0: RX AssocResp from 60:a4:4c:66:b8:2f (capab=0x411 status=0 aid=5)
[ 4474.809409] wlan0: associated
[ 4476.114587] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 4581.826003] nvgpu: 57000000.gpu railgate_enable_store:343 [INFO] railgate is disabled.
[ 6476.105479] wlan0: deauthenticating from 60:a4:4c:66:b8:2f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 6478.146514] wlan0: authenticate with 60:a4:4c:66:b8:2f
[ 6478.168586] wlan0: send auth to 60:a4:4c:66:b8:2f (try 1/3)
[ 6478.268872] wlan0: send auth to 60:a4:4c:66:b8:2f (try 2/3)
[ 6478.364081] wlan0: authenticated
[ 6478.364877] wlan0: associate with 60:a4:4c:66:b8:2f (try 1/3)
[ 6478.422020] wlan0: RX AssocResp from 60:a4:4c:66:b8:2f (capab=0x411 status=0 aid=5)
[ 6478.423989] wlan0: associated
When wifi is working:
fei@fei-desktop:/opt/nvidia/jetson-gpio/lib/python$ nmcli device wifi list
IN-USE SSID MODE CHAN RATE SIGNAL BARS SECURITY
A Infra 11 130 Mbit/s 100 ▂▄▆█ WPA2
B Infra 6 270 Mbit/s 84 ▂▄▆█ WPA1 WPA2
* Home Infra 11 130 Mbit/s 58 ▂▄▆_ WPA2
C Infra 1 130 Mbit/s 54 ▂▄__ WPA1 WPA2
D Infra 10 270 Mbit/s 54 ▂▄__ WPA2
E Infra 2 270 Mbit/s 44 ▂▄__ WPA2
F Infra 10 270 Mbit/s 44 ▂▄__ WPA1 WPA2
When wifi is NOT working: (All other existing network are gone)
IN-USE SSID MODE CHAN RATE SIGNAL BARS SECURITY
* Home Infra 11 130 Mbit/s 76 ▂▄▆_ WPA2
ifconfig output:
fei@fei-desktop:/opt/nvidia/jetson-gpio/lib/python$ ifconfig wlan0
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.250 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::5c01:747f:4180:5193 prefixlen 64 scopeid 0x20<link>
ether 74:da:38:ee:c2:92 txqueuelen 1000 (Ethernet)
RX packets 51485 bytes 40396191 (40.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 43591 bytes 6656519 (6.6 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
iwconfig output:
fei@fei-desktop:/opt/nvidia/jetson-gpio/lib/python$ iwconfig
lo no wireless extensions.
usb0 no wireless extensions.
l4tbr0 no wireless extensions.
dummy0 no wireless extensions.
wlan0 IEEE 802.11 ESSID:"Home"
Mode:Managed Frequency:2.462 GHz Access Point: 60:A4:4C:66:B8:2F
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=50/70 Signal level=-60 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:124 Missed beacon:0
eth0 no wireless extensions.
rndis0 no wireless extensions.
nmcli output:
fei@fei-desktop:/opt/nvidia/jetson-gpio/samples$ nmcli connection show
NAME UUID TYPE DEVICE
Home 6e4112e6-6c94-4b74-8919-8fbbba8681a3 wifi wlan0
l4tbr0 6310116d-0cac-4ae7-942b-463e5794b104 bridge l4tbr0
Home 1 ffd9e5aa-cbf5-4d6c-8177-50129e47b997 wifi --
Wired connection 1 6bcc9f4a-9886-3175-9b01-fc283fb21ad7 ethernet --
Hope this can be solved soon.