I'm running Linux Mint 14 MATE Edition on an Acer AOD257 netbook. At first glance everything appears to work as advertised. However, after a random amount of uptime (I have experienced anything from 20 minutes to several hours) wifi cuts out, and I am presented with a dialog asking me to retype the password. If I do so, no successful connection is made and the same dialog pops up again after half a minute or so.
The only way I have thus far found to get wifi connectivity back in these situations is to reboot the computer (fortunately this doesn't take much time as I have switched the internal hard drive for an SSD), but having to do so several times a day is quite annoying.
Does this sound like a driver/firmware issue, or could it be a problem with hardware overheating? The case does tend to feel quite warm to the touch after 30+ minutes of uptime ...
Below are the results of mintWifi.py:
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* I. scanning WIFI PCI devices...
-- Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01)
==> PCI ID = 168c:0032 (rev 01)
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* II. querying ndiswrapper...
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* III. querying iwconfig...
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"dlink2"
Mode:Managed Frequency:2.412 GHz Access Point: 00:24:01:6E:6B:B5
Bit Rate=48 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=41/70 Signal level=-69 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:891 Invalid misc:70430 Missed beacon:0
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* IV. querying ifconfig...
eth0 Link encap:Ethernet HWaddr 04:7d:7b:1d:f8:ba
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)
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:9105 errors:0 dropped:0 overruns:0 frame:0
TX packets:9105 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1435782 (1.4 MB) TX bytes:1435782 (1.4 MB)
wlan0 Link encap:Ethernet HWaddr 60:d8:19:4e:f5:e8
inet addr:192.168.0.129 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::62d8:19ff:fe4e:f5e8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1083031 errors:0 dropped:2 overruns:0 frame:0
TX packets:1101156 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:834506433 (834.5 MB) TX bytes:652763736 (652.7 MB)
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* V. querying DHCP...
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* VI. querying nslookup google.com...
Server: 127.0.1.1
Address: 127.0.1.1#53
Non-authoritative answer:
Name: google.com
Address: 173.194.35.135
Name: google.com
Address: 173.194.35.136
Name: google.com
Address: 173.194.35.137
Name: google.com
Address: 173.194.35.131
Name: google.com
Address: 173.194.35.142
Name: google.com
Address: 173.194.35.133
Name: google.com
Address: 173.194.35.132
Name: google.com
Address: 173.194.35.134
Name: google.com
Address: 173.194.35.129
Name: google.com
Address: 173.194.35.130
Name: google.com
Address: 173.194.35.128
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System: Host: bugport257 Kernel: 3.5.0-27-generic x86_64 (64 bit) Desktop: N/A Distro: Linux Mint 14 Nadia
Machine: System: Acer product: AOD257 version: V1.15
Mobo: Acer model: JE06_PT Bios: INSYDE version: V1.15 date: 10/21/2011
CPU: Dual core Intel Atom CPU N570 (-HT-MCP-) cache: 512 KB flags: (lm nx sse sse2 sse3 ssse3 vmx)
Clock Speeds: 1: 1000.00 MHz 2: 1000.00 MHz 3: 1000.00 MHz 4: 1666.00 MHz
Graphics: Card: Intel Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller
X.Org: 1.13.0 drivers: intel (unloaded: fbdev,vesa) Resolution: 1024x600@60.0hz
GLX Renderer: Mesa DRI Intel IGD GLX Version: 2.0 Mesa 9.1.1
Audio: Card: Intel NM10/ICH7 Family High Definition Audio Controller driver: snd_hda_intel Sound: ALSA ver: 1.0.25
Network: Card-1: Realtek RTL8101E/RTL8102E PCI Express Fast Ethernet controller driver: r8169
IF: eth0 state: down mac: 04:7d:7b:1d:f8:ba
Card-2: Atheros AR9485 Wireless Network Adapter driver: ath9k
IF: wlan0 state: up mac: 60:d8:19:4e:f5:e8
Drives: HDD Total Size: 128.0GB (28.1% used) 1: id: /dev/sda model: M4 size: 128.0GB
Partition: ID: / size: 116G used: 34G (31%) fs: ext4 ID: swap-1 size: 2.13GB used: 0.20GB (9%) fs: swap
RAID: No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Sensors: System Temperatures: cpu: 80.0C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 183 Uptime: 13:27 Memory: 821.9/1991.4MB Client: Shell inxi: 1.8.4