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Wifi is up, access point is visible, but network goes down.

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This is 12.3 with Xfce and Network Manager, connecting through wifi.

Once in a while, sometimes twice a day, network just disconnects, the bars in the NM icon turn all grey and there's not way to reconnect but a restart, which always works.

Changing the settings, restarting networking either via NM or systemctl, resarting with a physical wifi toggle button on the laptop, logging out - nothing helps. IP4 addresses are set manually.

Here's some terminal output:

Code:

stan@linux-ektu:~> /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0F:B0:80:8A:C0 
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:21

eth1      Link encap:Ethernet  HWaddr 00:12:F0:B1:C9:DA 
          inet addr:192.168.2.111  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:2022 errors:0 dropped:0 overruns:0 frame:0
          TX packets:565 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:404037 (394.5 Kb)  TX bytes:178080 (173.9 Kb)

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:5232 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5232 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:501005 (489.2 Kb)  TX bytes:501005 (489.2 Kb)

stan@linux-ektu:~> sudo /usr/sbin/iwlist scan
root's password:
lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

eth1      Scan completed :
          Cell 01 - Address: 00:22:2D:3F:C7:6A
                    ESSID:"SMC"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.462 GHz (Channel 11)
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 22 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Quality=93/100  Signal level=-34 dBm 
                    Extra: Last beacon: 75ms ago

stan@linux-ektu:~> /usr/sbin/iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      IEEE 802.11bg  ESSID:"SMC" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:22:2D:3F:C7:6A 
          Bit Rate:54 Mb/s  Tx-Power=20 dBm  Sensitivity=8/0 
          Retry limit:7  RTS thr:off  Fragment thr:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0  Missed beacon:0

stan@linux-ektu:~> ping 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
From 192.168.2.111 icmp_seq=1 Destination Host Unreachable
From 192.168.2.111 icmp_seq=2 Destination Host Unreachable
From 192.168.2.111 icmp_seq=3 Destination Host Unreachable
From 192.168.2.111 icmp_seq=4 Destination Host Unreachable
From 192.168.2.111 icmp_seq=5 Destination Host Unreachable
^C

What gives? Why nothing but a restart fixes it? One time I got the network back after troubleshooting with ifconfig and other terminal commands but I can't replicate this solution anymore.

After toggling wifi on/off NM tries to connect, gives up, and shows "no network" icon. At this point iwconfig and ifconfig look like this

Code:

stan@linux-ektu:~> /usr/sbin/iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      IEEE 802.11bg  ESSID:"SMC" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:22:2D:3F:C7:6A 
          Bit Rate:54 Mb/s  Tx-Power=20 dBm  Sensitivity=8/0 
          Retry limit:7  RTS thr:off  Fragment thr:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0  Missed beacon:0

stan@linux-ektu:~> /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0F:B0:80:8A:C0 
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:21

eth1      Link encap:Ethernet  HWaddr 00:12:F0:B1:C9:DA 
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:2624 errors:0 dropped:0 overruns:0 frame:0
          TX packets:565 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:465690 (454.7 Kb)  TX bytes:178080 (173.9 Kb)

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:5640 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5640 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:538938 (526.3 Kb)  TX bytes:538938 (526.3 Kb)

Gateway settings and IP address are gone but SSID and access point are still visible.

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