[SOLVED] Unstable connection wireless N with Linux Mint 13

Questions about WIFI networks and devices
Forum rules
Before you post please read this

[SOLVED] Unstable connection wireless N with Linux Mint 13

Postby Geof3010 on Sat Nov 10, 2012 4:17 pm

Hi everybody,

Fist of all I want to say that I am a total newbie and that I have very few technical knowledge on Linux. So please forgive me if I say incorrect things or lack obvious concepts.

2 weeks ago I installed Linux Mint 13 Maya XFCE 4 as a dual boot with windows 7. I basically fell in love with this OS: everything was quite simply going twice as fast as Windows, especially everything internet-related.

4 days ago my 6 years-old router died so I went to buy a new one and got a linksys e1500 router. Obviously my old router was B/G and the new one is B/G/N. I installed and set up the new router: everything was pretty quick and straight forward.

I had no troubles setting up the WiFI connection between my linux computer and the new router but I noticed that my wireless connection would fail systematically after few minutes. So I started to investigate: I will try to detail all the facts:

1) when the failure occurs, the browser fails to load the internet pages.. If I disconnect from my home network and reconnect again, then I get internet back for another few minutes..
2) I realized it was strictly a linux mint problem since while my WIFI connection was not working on my linux computer, my laptop (running windows) and tablet had perfect WIFI connections..
3) When I booted the computer with windows 7, I had absolutely no issues of instability for the wireless connection. That way I knew it was not a problem between my WIFI adapter PCI card and the new router.
4) I then started to suspect of the WIFI N, just because my old router was B/G and that I had no issues with linux before. I changed the Wireless configuration to B/G mode and the instability problems went away immediately !!!

So I understand that the problems resides in the WIFI N connection: that is pretty annoying since I would love obviously to be able to enjoy a faster connection with WIFI N.

I would be very thankful if any of you could give me a hand with this problem !!!

I read that I should publish the following details:

Code: Select all
-------------------------
* I. scanning WIFI PCI devices...
  -- Ralink corp. RT2800 802.11n PCI
      ==> PCI ID = 1814:0601
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"ManuVeroBsAs" 
          Mode:Managed  Frequency:2.412 GHz  Access Point: 20:AA:4B:C1:18:FA   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=38/70  Signal level=-72 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:36  Invalid misc:156   Missed beacon:0

eth0      no wireless extensions.

-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr 6c:f0:49:84:e7:a4 
          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

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:766 errors:0 dropped:0 overruns:0 frame:0
          TX packets:766 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:22338 (22.3 KB)  TX bytes:22338 (22.3 KB)

wlan0     Link encap:Ethernet  HWaddr 00:1f:1f:4f:02:80 
          inet addr:192.168.1.117  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::21f:1fff:fe4f:280/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:245570 errors:0 dropped:0 overruns:0 frame:0
          TX packets:381449 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:170943696 (170.9 MB)  TX bytes:241470743 (241.4 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:      8.8.8.8
Address:   8.8.8.8#53

Non-authoritative answer:
Name:   google.com
Address: 173.194.74.101
Name:   google.com
Address: 173.194.74.138
Name:   google.com
Address: 173.194.74.139
Name:   google.com
Address: 173.194.74.113
Name:   google.com
Address: 173.194.74.102
Name:   google.com
Address: 173.194.74.100
Last edited by Geof3010 on Wed Nov 21, 2012 9:39 pm, edited 1 time in total.
Geof3010
Level 1
Level 1
 
Posts: 3
Joined: Sat Nov 10, 2012 11:23 am

Linux Mint is funded by ads and donations.
 

Re: Unstable connection wireless N with Linux Mint 13

Postby remoulder on Sun Nov 11, 2012 4:29 pm

As a test try doing in a terminal
Code: Select all
sudo rmmod -f rt2800pci
sudo modprobe rt2800pci nohwcrypt=Y


If there's any difference you can make it permanent with
Code: Select all
echo "options rt2800pci nohwcrypt=Y" | sudo tee /etc/modprobe.d/rt2800pci.conf
[Edit] your original post and add [SOLVED] once your question is resolved.

“The people are my God” stressing the factor determining man’s destiny lies within man not in anything outside man, and thereby defining man as the dominator and remoulder of the world.
User avatar
remoulder
Level 17
Level 17
 
Posts: 7667
Joined: Fri May 09, 2008 1:14 pm

Re: Unstable connection wireless N with Linux Mint 13

Postby Geof3010 on Sun Nov 11, 2012 8:33 pm

Remoulder: I tried your test but still had the instability issue with WIFI N.

Thanks anyway !!
Geof3010
Level 1
Level 1
 
Posts: 3
Joined: Sat Nov 10, 2012 11:23 am

Re: Unstable connection wireless N with Linux Mint 13

Postby Geof3010 on Wed Nov 21, 2012 9:35 pm

Hi everybody:

I solved the instability problem I was having with WIFI N. The problem was with the driver of my wireless Ralink card and the RT2800 module of linux. This fix also greatly improved my wireless link quality (from less than 50% to close to 100% all the time)

I actually found the solution on another forum: I just followed the instructions and it worked like a charm. Please follow the link below if you experience the same kind of issues:

http://ubuntuforums.org/showthread.php?t=1958059

Cheers..
Geof3010
Level 1
Level 1
 
Posts: 3
Joined: Sat Nov 10, 2012 11:23 am

Re: [SOLVED] Unstable connection wireless N with Linux Mint

Postby pjcamp on Wed Jul 03, 2013 8:31 pm

Compiling and installing the 2860 driver seems to be the right answer. My wireless connection was going half way down every 5 minutes or so. By that I mean that it claimed to be still connected but was unable to do DNS lookups until I disconnected and reconnected.

Just a couple of minor notes. Where the linked instructions say "download RA2860" they mean "download RT2860." Also, once you have done that, you'll have a file that claims to be bzip compressed (extension .bz2). It isn't. It is gzip compressed and misnamed. You'll need to change the extension from .bz2 to .gz, then decompress it using gzip, and then untar it.
pjcamp
Level 1
Level 1
 
Posts: 4
Joined: Wed Jan 04, 2012 1:34 pm


Return to Wireless

Who is online

Users browsing this forum: johnnydolphin and 11 guests