Mint 14 Cinnamon - Wireless drops unless ping runs constanly

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Mint 14 Cinnamon - Wireless drops unless ping runs constanly

Postby bluehandcc on Wed Mar 20, 2013 11:17 pm

I'm new to Linux and even newer to Mint so go easy... and real slow. :mrgreen:

Just bought a TP-LINK TL-WN821N v4. From what I found here ( http://wikidevi.com/wiki/TP-LINK_TL-WN821N_v4 ) the wireless chipset is a Realtek RTL8192CU which should be natively supported. I plugged in the adapter and was able to connect without additional drivers needed. I thought I was in business until a few minutes in the connection dropped. Then it started asking me for my wifi password, which I entered, but it never reconnects. It just keeps asking for the wifi password.

I tried to toggle the connection off and then on as others have had luck with that but that doesn't give me any results. No SSIDs are listed in the little wireless menu on the panel after I do that.

If I unplug the adapter and plug it back in it will reconnect almost immediately but eventually drops again. I did find that by running ping I was able to extend the connection time out to 20+ minutes but it just dropped again while writing this even with a ping running in the background so I'm out of ideas. Also, the green power light on the USB adapter is still lit.


inxi -N
Network: Card-1: Realtek RTL8111/8168B PCI Express Gigabit Ethernet controller driver: r8169
Card-2: Realtek RTL8192CU 802.11n WLAN Adapter driver: rtl8192cu


mintwifi
-------------------------
* I. scanning WIFI PCI devices...
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
eth0 no wireless extensions.

lo no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"dd-wrt"
Mode:Managed Frequency:2.437 GHz Access Point: 00:21:29:CE:93:F0
Bit Rate=18 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=67/70 Signal level=-43 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:107 Missed beacon:0

-------------------------
* IV. querying ifconfig...
eth0 Link encap:Ethernet HWaddr bc:5f:f4:67:e5:06
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:7202 errors:0 dropped:0 overruns:0 frame:0
TX packets:7202 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1083428 (1.0 MB) TX bytes:1083428 (1.0 MB)

wlan0 Link encap:Ethernet HWaddr a0:f3:c1:21:71:f1
inet addr:10.10.10.102 Bcast:10.10.10.255 Mask:255.255.255.0
inet6 addr: 2002:4132:1081:0:7036:9d1a:edec:2ee0/64 Scope:Global
inet6 addr: 2002:4132:1081:0:a2f3:c1ff:fe21:71f1/64 Scope:Global
inet6 addr: fe80::a2f3:c1ff:fe21:71f1/64 Scope:Link
inet6 addr: 2002:4132:1081:0:f84f:1d66:c1cd:d68c/64 Scope:Global
inet6 addr: 2002:4132:1081:0:5064:2c0c:2448:d8e7/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6461 errors:0 dropped:0 overruns:0 frame:0
TX packets:6468 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3736211 (3.7 MB) TX bytes:1175342 (1.1 MB)

-------------------------
* V. querying DHCP...
[sudo] password for username:
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: 10.10.10.10
Address: 10.10.10.10#53

Non-authoritative answer:
Name: google.com
Address: 173.194.37.35
Name: google.com
Address: 173.194.37.36
Name: google.com
Address: 173.194.37.37
Name: google.com
Address: 173.194.37.38
Name: google.com
Address: 173.194.37.39
Name: google.com
Address: 173.194.37.40
Name: google.com
Address: 173.194.37.41
Name: google.com
Address: 173.194.37.46
Name: google.com
Address: 173.194.37.32
Name: google.com
Address: 173.194.37.33
Name: google.com
Address: 173.194.37.34
bluehandcc
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Re: Mint 14 Cinnamon - Wireless drops unless ping runs const

Postby bluehandcc on Thu Mar 21, 2013 12:33 am

Quick update...

It seems that running a constant ping has nothing to do with it staying connected longer or not. :roll:
bluehandcc
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Re: Mint 14 Cinnamon - Wireless drops unless ping runs const

Postby bluehandcc on Sat Mar 23, 2013 9:26 pm

Well after much trial and error I gave up and moved to a different card.

I picked up a Tenda W522U.

inxi -N shows the following:

Ralink RT3572 Wireless Adapter driver: rt2800usb

The only issue I have with it is that even though it's connected to an N-speed network it's only showing 43mbit connection and the wireless router is only 10ft away with nothing in between it. Oh well, that's for another thread I guess. :wink:
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Re: Mint 14 Cinnamon - Wireless drops unless ping runs const

Postby fruddy9999 on Tue Apr 09, 2013 4:01 am

Hi,

in response to your original post, I also had the same problem, so I followed the instructions here....

http://forum.ubuntuusers.de/topic/wlan-stick-524440/3/#post-5210562

although I've just finished, my wireless status is showing 100% and it was never that high before... it looks like its going to be a stable connection...

hope it helps..

cheers
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