Big drop in wireless signal under Mint 13

Questions about WIFI networks and devices
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Guan
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Posts: 40
Joined: Mon Jul 13, 2009 6:04 am
Location: Guangzhou, China
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Big drop in wireless signal under Mint 13

Post by Guan »

I've got Mint 13 up and running, and it's a beauty of a system. One thing that I have noticed though is that my wireless signal strength took quite a hit. My router sits about 2 meters away from my wireless antenna, and there are no obstructions between the two. Under Mint 12, I was consistently pulling around 97% signal strength. Under Mint 13, 75%. It still works fine and everything, but I thought I would pass that along. Here's some data about my connection and card.

Code: Select all

* I. scanning WIFI PCI devices...
  -- Atheros Communications Inc. AR922X Wireless Network Adapter (rev 01)
      ==> PCI ID = 168c:0029 (rev 01)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Nyuck Nyuck Ouch!"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:18:E7:EF:75:EA   
          Bit Rate=54 Mb/s   Tx-Power=27 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=66/70  Signal level=-44 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:1  Invalid misc:44   Missed beacon:0

eth0      no wireless extensions.

-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr 00:1f:e2:5c:db:08  
          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:46 

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:122 errors:0 dropped:0 overruns:0 frame:0
          TX packets:122 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:11971 (11.9 KB)  TX bytes:11971 (11.9 KB)

wlan0     Link encap:Ethernet  HWaddr 00:18:e7:c4:47:2e  
          inet addr:192.168.0.195  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::218:e7ff:fec4:472e/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:267 errors:0 dropped:0 overruns:0 frame:0
          TX packets:359 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:116746 (116.7 KB)  TX bytes:56816 (56.8 KB)

-------------------------
* 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
-------------------------
* VI. querying nslookup google.com...
Server:		192.168.0.10
Address:	192.168.0.10#53

Non-authoritative answer:
Name:	google.com
Address: 74.125.71.102
Name:	google.com
Address: 74.125.71.138
Name:	google.com
Address: 74.125.71.100
Name:	google.com
Address: 74.125.71.101
Name:	google.com
Address: 74.125.71.139
Name:	google.com
Address: 74.125.71.113

gounistat
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Posts: 1
Joined: Sat Jun 23, 2012 11:00 pm

Re: Big drop in wireless signal under Mint 13

Post by gounistat »

I experience the similar situation. The notebook is 5 meters away and in MS windows it shows "excellent" connection. But in Linux mint 13 shows 70 ~ 73% AND when streaming video it drops every 2 ~ 3 minutes. I wonder why. Would it be due to software? Would it be due to driver mismatch, sub-optimized...?
As other thread suggested, I checked wireless security setting of my wireless router and changed to AES from TKIP with WPA2.
It did not change any. So I think the problem still lies on some Linux Mint 13 maya configuration. Will keep looking for solution.
unistat

AkuBuntu
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Level 1
Posts: 1
Joined: Mon Jun 25, 2012 3:40 am

Re: Big drop in wireless signal under Mint 13

Post by AkuBuntu »

i'm new.. but try connect under cinnamon, not gnome.

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