Mint 13/ 3945ABG problems

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Mint 13/ 3945ABG problems

Postby Arnas on Tue Nov 13, 2012 5:47 pm

Hello,
I installed Mint to my secondary machine (a laptop - Asus F3Jc) back in summer. Wireless worked perfectly fine...
..until recently.
Basically, my problem is that something makes the Wireless signal quality decrease - up to the point where I get terrible speeds or even random disconnects from time to time. I tried various solutions that I found on the internet (like installing wicd), but nothing helps.
Also, after scanning, wicd reports the signal strength at around 50 percent. After connecting it shows 60, later drops to 50. If it drops to 40, the problems start.
Last edited by Arnas on Sun Nov 18, 2012 2:30 pm, edited 4 times in total.
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Re: Mint 13/ 3945ABG problems

Postby remoulder on Tue Nov 13, 2012 6:29 pm

You need to provide more information when posting in here, see http://forums.linuxmint.com/viewtopic.php?f=53&t=1085
[Edit] your original post and add [SOLVED] once your question is resolved.

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Re: Mint 13/ 3945ABG problems

Postby Arnas on Wed Nov 14, 2012 8:57 am

OK, here it is:
Code: Select all
Namai2 arnas #     sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
  -- Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
      ==> PCI ID = 8086:4222 (rev 02)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo        no wireless extensions.

wlan0     IEEE 802.11abg  ESSID:"Namai" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: D4:D1:84:A8:C9:2B   
          Bit Rate=24 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=26/70  Signal level=-84 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:5  Invalid misc:1304   Missed beacon:0

eth0      no wireless extensions.

-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr 00:1a:92:19:40:d7 
          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:44 Base address:0xa000

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)

wlan0     Link encap:Ethernet  HWaddr 00:18:de:c0:e6:3a 
          inet addr:192.168.1.92  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::218:deff:fec0:e63a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:38836 errors:0 dropped:0 overruns:0 frame:0
          TX packets:23475 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:55665088 (55.6 MB)  TX bytes:2374662 (2.3 MB)

-------------------------
* V. querying DHCP...
Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service smbd reload

Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the reload(8) utility, e.g. reload smbd
RTNETLINK answers: File exists
-------------------------
* VI. querying nslookup google.com...
Server:      192.168.1.254
Address:   192.168.1.254#53

Non-authoritative answer:
Name:   google.com
Address: 173.194.70.100
Name:   google.com
Address: 173.194.70.139
Name:   google.com
Address: 173.194.70.101
Name:   google.com
Address: 173.194.70.102
Name:   google.com
Address: 173.194.70.138
Name:   google.com
Address: 173.194.70.113

I should probably mention that right now, the signal is at ~40% and kinda-somewhat slow. Not enough for 720p YouTube videos.
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Re: Mint 13/ 3945ABG problems

Postby Arnas on Wed Nov 14, 2012 9:20 am

Don't know if it makes a difference, but it just increased to ~50% and I am watching a 720p video right now. Also did the mintWifi thing again:
Code: Select all
Namai2 arnas #     sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
  -- Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
      ==> PCI ID = 8086:4222 (rev 02)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo        no wireless extensions.

wlan0     IEEE 802.11abg  ESSID:"Namai" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: D4:D1:84:A8:C9:2B   
          Bit Rate=24 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=35/70  Signal level=-75 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:6  Invalid misc:3638   Missed beacon:0

eth0      no wireless extensions.

-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr 00:1a:92:19:40:d7 
          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:44 Base address:0xa000

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)

wlan0     Link encap:Ethernet  HWaddr 00:18:de:c0:e6:3a 
          inet addr:192.168.1.92  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::218:deff:fec0:e63a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:103375 errors:0 dropped:0 overruns:0 frame:0
          TX packets:59121 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:150742041 (150.7 MB)  TX bytes:5643441 (5.6 MB)

-------------------------
* V. querying DHCP...
Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service smbd reload

Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the reload(8) utility, e.g. reload smbd
RTNETLINK answers: File exists
-------------------------
* VI. querying nslookup google.com...
Server:      192.168.1.254
Address:   192.168.1.254#53

Non-authoritative answer:
Name:   google.com
Address: 173.194.70.101
Name:   google.com
Address: 173.194.70.100
Name:   google.com
Address: 173.194.70.138
Name:   google.com
Address: 173.194.70.139
Name:   google.com
Address: 173.194.70.102
Name:   google.com
Address: 173.194.70.113
Arnas
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Re: [SOLVED] Mint 13/ 3945ABG problems

Postby Arnas on Wed Nov 14, 2012 2:15 pm

I seem to have fixed the problem. I moved the router plug from the cord extender directly into the plug, and it works now.
I didn't take the fact that I upgraded the desktop a ~month ago and the power drain, obviously, increased.

Not for long though :(
I am taking it's a router issue, then? Because restarting it appeared to have worked. For some time, at least.

Hmmm. It's been working for the last ~2 hours perfectly fine. Perhaps that was a solution.
I'll continue using the same setup tomorrow and report back.
Arnas
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Re: Mint 13/ 3945ABG problems

Postby Arnas on Sun Nov 18, 2012 2:39 pm

So here I am: confirming that it's not a router thing. A different laptop works.
Rebooting the router works, but for a limited time. That time varies highly, from a couple of minutes to a few hours. Sometimes it just slows down, sometimes it disconnects completely. The first one happens more often, though.
I am completely lost right now. This single problem is ruining the whole Mint experience for me: even though everything was perfect for a few months.

A reinstall perhaps?
Or if all else fails, switch back to Windows... Which would suck.

Anyone know something?
Arnas
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