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susanw
April 16th, 2010, 07:35 PM
Updating an old edition of ubuntu has been fantastic for my old computer but lack of consistent internet is getting too annoying now,
Sometimes when the pc turns on wireless networks show up but computer will not connect to them, it tries then the password window repeatedly comes up. All the settings look correct in network connections.

Other times when I turn on the computer it all works just fine with exactly the same settings. Then later on that login it ay randomly turn disconnect, or just be fine for ages.


Any ideas on how to reconnect network without restarting and hoping that this time it 'magically' works would be much appreciated. I wondered if it was some external thing like other computers being on the network but my other computer doesn't suffer anything like this so unlikely?

Thank you in advance,

susanw
April 16th, 2010, 07:40 PM
Some possibly helpful output data

When it doesn't work:

susan@susan-desktop:~$ ping -c 4 127.0.0.1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.058 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.040 ms
64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.039 ms
^C
--- 127.0.0.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 0.039/0.045/0.058/0.011 ms
susan@susan-desktop:~$ sudo ifconfig
[sudo] password for susan:
eth0 Link encap:Ethernet HWaddr 00:01:80:50:0c:b8
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:22 Base address:0xe000

eth1 Link encap:Ethernet HWaddr 00:09:5b:91:b3:e1
inet6 addr: fe80::209:5bff:fe91:b3e1/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:276 (276.0 B)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:34 errors:0 dropped:0 overruns:0 frame:0
TX packets:34 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2312 (2.3 KB) TX bytes:2312 (2.3 KB)

susanw
April 16th, 2010, 07:42 PM
When it does work:

susan@susan-desktop:~$ sudo ifconfig
[sudo] password for susan:
eth0 Link encap:Ethernet HWaddr 00:01:80:50:0c:b8
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:22

eth1 Link encap:Ethernet HWaddr 00:09:5b:91:b3:e1
inet addr:192.168.2.11 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::209:5bff:fe91:b3e1/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:33 errors:0 dropped:0 overruns:0 frame:0
TX packets:22 errors:2 dropped:2 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2434 (2.4 KB) TX bytes:5192 (5.1 KB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:480 (480.0 B) TX bytes:480 (480.0 B)

susan@susan-desktop:~$ sudo iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

eth1 IEEE 802.11b ESSID:"warrens wireless"
Mode:Managed Frequency:2.412 GHz Access Point: 00:1C:DF:C5:58:B3
Bit Rate:5.5 Mb/s Sensitivity:1/0
Retry short limit:8 RTS thr:off Fragment thr:off
Encryption key:2506-1979-25 Security mode:open
Power Management:off
Link Quality=32/70 Signal level=-54 dBm Noise level=-134 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0


ignore the random smileys, supposed to be ":zero"