vypadavajici wifi

[Marek Soudny]

Ahoj,

mam problem s vypadavajici wifi. Na notebooku jsme normalne pripojenej k 
siti (wifi) a znicehonic ztratim signal. Problem je v tom, ze wifi 
zustane pripojena k AP, ale nepingnu se ani na GW. Po nejaky chvili 
(neumim presne urcit) se na GW dopingam, ale odezva je desiva (nekolik 
malo sekund), po dalsi chvili uz je pripojeni OK. A to se mi nekdy 
nestane cely den, nekdy nekolikrat za dopoledne. Restart netif service 
problem "opravi", nekdy se znovu objevi, nekdy ne.

Proste nejsem schopnej nijak rict, kdy, proc a jak k problemu dochazi, 
syslog mlci. Moje otazka tedy zni: muzete mi nekdo poradit, co a jak mam 
monitorovat, abych se dozvedel kdy a proc k problemu dochazi?

$ uname -a
FreeBSD n006322.at-work.local 13.0-RELEASE-p3 FreeBSD 13.0-RELEASE-p3 
#0: Tue Jun 29 19:46:20 UTC 2021 
root at amd64-builder.daemonology.net:/usr/obj/usr/src/amd64.amd64/sys/GENERIC 
amd64

$ ifconfig wlan0
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
     ether 60:f6:77:e2:58:fb
     inet 192.168.1.6 netmask 0xffffff00 broadcast 192.168.1.255
     groups: wlan
     ssid Drei_HG659_24G_T9Rj channel 8 (2447 MHz 11g) bssid 
d8:29:18:ea:a9:e0
     regdomain ETSI country AT authmode WPA2/802.11i privacy ON
     deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 10 scanvalid 60
     protmode CTS wme roaming MANUAL
     parent interface: iwm0
     media: IEEE 802.11 Wireless Ethernet OFDM/54Mbps mode 11g
     status: associated
     nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

$ egrep -i 'iwm|wifi|wlan' /var/log/messages | grep 'Jul 22'
Jul 22 09:05:53 n006322 kernel: iwm0: <Intel(R) Dual Band Wireless AC 
8260> mem 0xe1100000-0xe1101fff irq 19 at device 0.0 on pci2
Jul 22 09:05:53 n006322 kernel: iwm0: hw rev 0x200, fw ver 22.361476.0, 
address 60:f6:77:e2:58:fb
Jul 22 09:05:53 n006322 kernel: wlan0: Ethernet address: 60:f6:77:e2:58:fb
Jul 22 09:05:53 n006322 kernel: wlan0: link state changed to UP
Jul 22 09:05:53 n006322 kernel: iwm0: code ce, frame 1/73 b800002c unhandled
Jul 22 09:05:53 n006322 kernel: iwm0: code ce, frame 1/97 b800002c unhandled
Jul 22 09:06:01 n006322 kernel: iwm0: code ce, frame 1/223 b800002c 
unhandled
Jul 22 09:06:52 n006322 kernel: wlan0: link state changed to DOWN
Jul 22 09:06:52 n006322 wpa_supplicant[31801]: wlan0: 
CTRL-EVENT-DISCONNECTED bssid=d8:29:18:ea:a9:e0 reason=0
Jul 22 09:06:55 n006322 wpa_supplicant[31801]: wlan0: Trying to 
associate with d8:29:18:ea:a9:e0 (SSID='Drei_HG659_24G_T9Rj' freq=2447 MHz)
Jul 22 09:07:05 n006322 wpa_supplicant[31801]: wlan0: Authentication 
with d8:29:18:ea:a9:e0 timed out.
Jul 22 09:07:05 n006322 wpa_supplicant[31801]: wlan0: 
CTRL-EVENT-DISCONNECTED bssid=d8:29:18:ea:a9:e0 reason=3 locally_generated=1
Jul 22 09:07:06 n006322 wpa_supplicant[31801]: wlan0: Trying to 
associate with d8:29:18:ea:a9:e0 (SSID='Drei_HG659_24G_T9Rj' freq=2447 MHz)
Jul 22 09:07:16 n006322 wpa_supplicant[31801]: wlan0: Authentication 
with d8:29:18:ea:a9:e0 timed out.
Jul 22 09:07:16 n006322 wpa_supplicant[31801]: wlan0: 
CTRL-EVENT-DISCONNECTED bssid=d8:29:18:ea:a9:e0 reason=3 locally_generated=1
Jul 22 09:07:16 n006322 wpa_supplicant[31801]: wlan0: 
CTRL-EVENT-SSID-TEMP-DISABLED id=3 ssid="Drei_HG659_24G_T9Rj" 
auth_failures=1 duration=10 reason=CONN_FAILED
Jul 22 09:07:31 n006322 wpa_supplicant[31801]: wlan0: 
CTRL-EVENT-SSID-REENABLED id=3 ssid="Drei_HG659_24G_T9Rj"
Jul 22 09:07:31 n006322 wpa_supplicant[31801]: wlan0: Trying to 
associate with d8:29:18:ea:a9:e0 (SSID='Drei_HG659_24G_T9Rj' freq=2447 MHz)
Jul 22 09:07:41 n006322 wpa_supplicant[31801]: wlan0: Authentication 
with d8:29:18:ea:a9:e0 timed out.
Jul 22 09:07:41 n006322 wpa_supplicant[31801]: wlan0: 
CTRL-EVENT-DISCONNECTED bssid=d8:29:18:ea:a9:e0 reason=3 locally_generated=1
Jul 22 09:07:41 n006322 wpa_supplicant[31801]: wlan0: 
CTRL-EVENT-SSID-TEMP-DISABLED id=3 ssid="Drei_HG659_24G_T9Rj" 
auth_failures=2 duration=20 reason=CONN_FAILED
Jul 22 09:08:08 n006322 wpa_supplicant[31801]: wlan0: 
CTRL-EVENT-SSID-REENABLED id=3 ssid="Drei_HG659_24G_T9Rj"
Jul 22 09:08:08 n006322 wpa_supplicant[31801]: wlan0: Trying to 
associate with d8:29:18:ea:a9:e0 (SSID='Drei_HG659_24G_T9Rj' freq=2447 MHz)
Jul 22 09:08:08 n006322 kernel: wlan0: link state changed to UP
Jul 22 09:08:08 n006322 wpa_supplicant[31801]: wlan0: Associated with 
d8:29:18:ea:a9:e0
Jul 22 09:08:09 n006322 wpa_supplicant[31801]: wlan0: WPA: Key 
negotiation completed with d8:29:18:ea:a9:e0 [PTK=CCMP GTK=CCMP]
Jul 22 09:08:09 n006322 wpa_supplicant[31801]: wlan0: 
CTRL-EVENT-CONNECTED - Connection to d8:29:18:ea:a9:e0 completed [id=3 
id_str=]
Jul 22 09:08:12 n006322 dhclient[67813]: New IP Address (wlan0): 192.168.1.6
Jul 22 09:08:12 n006322 dhclient[69143]: New Subnet Mask (wlan0): 
255.255.255.0
Jul 22 09:08:12 n006322 dhclient[70265]: New Broadcast Address (wlan0): 
192.168.1.255
Jul 22 09:08:12 n006322 dhclient[72163]: New Routers (wlan0): 192.168.1.1

To je z dnesniho syslogu, ale k problemu dnes (zatim) nedoslo, nicmene i 
kdyz dojde, info tam zadny navic neni....

Dekuju za cokoliv :)
Marek