Networking :: Iwconfig Reports Many Errors
Apr 16, 2010
I have one laptop running under Windows and another under Linux. I can access and surf the internet on both computers. But the Linux laptop is painfully slow.
If I ping my gateway the Windows lappy does in in 1 ms but the Linux in 20ms. iwconfig reports errors under Rx invalid crypt, tx excessive retries and huge numbers under invalid misc, and nothing on the rest.
The router is encrypted with WEP and iwconfig reports the correct key.
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Jul 24, 2009
I've got an odd one, running the CentOS 5.3 kernel, I'm experiencing lost packets on one of the two NICs when tested with ping. In this particular case, it's the internal NIC that causes the problem, pings from the CentOS machine to the public network over the external NIC never loses packets.(internet)<-->CentOS<--> (LAN) <--> desktop
- CentOS can ping the internet with no packet loss
- CentOS loses packets when pinging the desktop(s)
- Desktops lose packets when pinging the CentOS box
- Taking the LAN switch out of the equation still results in lost packets
- When the LAN NIC on the CentOS box "acts up", all desktops start losing packets
I've swapped out the NIC a few times for different makes/models, and I'm still getting lost packets to/from the internal network. So, I'm thinking that there's something squirrely going on higher up in the network stack. But evidently, not enough to log anything to the console or into the log files.At the moment, I'm leaning towards it being an issue with the nForce 750a SLI chipset. But it's odd that it only affects the LAN card and not the WAN card. I've even swapped the positions of the two NICs, and the problem persists on the LAN card.The other possibility is that iptables is eating packets silently, but in a random fashion.
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Nov 25, 2010
In this case what is the return value of mount. I want to run e2fsck only when either mount fails or mount succeeded but with errors . Is there some way to detect this situatin "mounting fs with errors" in code/script .
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May 9, 2011
I got the following task from my boss. I have to find out if there is some alternative tool for create reports from Squid except SARG. Now, we use SARG, but my boss told to me, that the main problem of SARG is, that SARG generate huge amount files, which cause problems during migration our servers. He told to me the following condition for change of current tool (SARG):
* standard package of Debian
* generate less amount of files, optimal is to save reports to the database
So I would like to ask you if you know about some tool (I can not find some by google)... and the best would be if you told to me some practical experiences.
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Jul 3, 2011
I have an IBM T60 with Intel 3945ABG WNIC:
Module for this WNIC is loaded:
Code:
Code:
If I execute "iwlist wlan0 scanning", I see the cell I'm interested in:
Code:
I'm able to connect to this cell using Gnome "Wireless Networks" manager, but not with iwconfig. At first I tried to connect to this "bq" network while wlan0 was active("ifconfig wlan0 up") using the iwconfig but this didn't change any of the wlan0 parameters.
Then I tried to shutdown wlan0("ifconfig wlan0 down") and executed:
Code:
Now the changes applied and "iwconfig wlan0" gives following:
Code:
Everything seems to be correct, but I'm still "Not-Associated". I have tried with "iwconfig wlan0 essid bq", "iwconfig wlan0 ap 00:24:14:F9:0B:92", "iwconfig wlan0 essid "bq" mode Managed" etc, but whatever I try, it does not connect. I even did "/etc/init.d/gdm stop" in order to be sure, that Gnome "Wireless Networks" is not interfering with "iwconfig", but this gave no results as well. I can associate with this AP using the Gnome "Wireless Networks" just fine, but for some reason I can't connect using iwconfig.
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Apr 5, 2009
I'm running fedora 8 and i have a TEW-424ub. I recently ditched windows, and the only disk i could get was a Fedora 8 dvd. I used ndiswrapper to get my driver installed, then I used the iwconfig commands to hook myself up to my wireless. However, every time i do the command
Code:
My comp freezes up. I then decided to use the GUI to set it up, as it might be less aggravating. It found my network, i input the key, double-check, and it atttempts to connect, then asks me once again.'
Also, if I go to Network Configuration, and activate my ndiswrapper device, it gives me the error & my comp freezes up "Set Encode" (8B2A) SET failed on device wlan0:0 ; Invalid argument.
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Mar 3, 2010
I use iwconfig to connect to my networks cuz i have fluxbox as my window manager. At home my network key is just a phone number and i can connect fine. at my college campus the key is "thinkofspring" and every time i do
Code:
sudo iwconfig wlan0 key thinkofspring
i get an error that the key is invalid or didn't work. Do i need to use a different command for full text keys? I'm running ubuntu 9.10
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Jun 27, 2010
I recently got my Belkin USB wireless adapter working by following some other threads in these forums. Now I would like to connect to my access point. iwlist scan works great and I can see my AP along with others. However when I follow the step by step instructions here: [URL]... I fail during the DHCP request with no DHCPOFFERS. My AP is using WEP encryption for now (I've even tried it with open encryption). The thing that I'm seeing or not seeing is that when I set my essid using sudo iwconfig wlan0 essid "GimpsHouse" and then after that do an iwconfig it says off/any. Here is my iwconfig
[code]...
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Feb 20, 2010
I am having some problems with my wireless card. If I ping my pc with no activity on it, it just won't respond to the pings. But if I start pinging from the PC and then from somewhere else, everything works perfect. I found out this problem since my ftp service was not responding sometimes. So looking for info and checking some parameters I found the "Power Management" option in the iwconfig command. It's value is "on" so I tried turning it off and It seemed to have solved the issue. The thing is that after a reboot, it returns to it's default value. Is there any way to make this parameter value permanent?
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Feb 21, 2010
I have an Atheros AR928X Wireless Adapter (built in to laptop). I can connect to net works with nm-applet fine, but when I use iwconfig, There are no changes. Example:
Code:
$ iwconfig wlan0 essid Convery
$ iwconfig
shows no changes, not even when I set the access point to the right address.
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Mar 28, 2011
In our family we have an Eee PC / in Windows7 and openSUSE 11.4 everything is working. In Mint 10 Gnome 64 and 32 bit and Fedora 14 Gnome 32 bit we don t have wireless with persistent USB. iwconfig > no wireless and Networkmanager does not show wireless.
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Feb 6, 2010
I still cannot access to internet. May I know why?
Is it due to the Error for wireless request "Set Encode" (8B2A)
The step i did:
1) iwlist eth1 scanning
2) sudo iwconfig eth1 essid shabana key s:xxxxxx
3) invoke firefox ... cannot surf
Do I need to set dhclient? how should I set? DO I need to enable wpa_supplicant?
iwlist eth1 scanning
sound like I was able to connect to ESSID:shabana. Is it true?
The linux is Centos 5.4
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Jan 31, 2011
I am trying to connect to a wireless network. I got a problem with network manager. So I try to connect manually
I found wireless network around by using "iwlist scan" command.
I want to connect to a network with ESSID "MCC(Mandalay)" and Key "mdymcctraining"
Here is my problem The output of "iwconfig" command is
Code:
What does it mean "invalid argument"? It means that my wireless pre-sharedkey is not correct? I am sure the key is valid. It is used by any others with window 7.
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Feb 26, 2010
i've had problems with a laptops wireless card (using 8.04).i can connect to my network but only at 1mpbs. so, searching through the forums, i found a post that said to issue this command: Code: sudo iwconfig wlan1 rate 11M and that seemed to solve my problem, temporarily.now i'm growing tiresome of doing disabling wireless, issuing the command, and then bringing the wireless card back up. is there a way i can do this automatically upon boot? i checked out my interfaces file, but it only has the loopback setting in there.is there a config file somewhere that i can set the rate of the wireless card manually?
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Jun 2, 2010
I have a tenda W311u wireless with a ra3070sta chipset, i read a lot of tutorials to get it working. I recently had my wireless working but just in NetworkManager. I need to get working in console mode, for example when i make a:
Note: The Essid the same i added in the RT2870sta.dat file.
And therefore if i try a dhclient3 ra0 no dhcp offers received.
Rare, but if i start NetworkManager connected to azcor, and i make a dhclient3 ra0 i get an ip very fast.
I try with cnetworkmanager but is complicated and isnt working for me!
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Jul 6, 2010
ubuntu is capping my wireless connection at 1Mbps, so everytime I boot up i have to type this:
"iwconfig wlan0 rts 2347 && sudo iwconfig wlan0 frag 2346 && sudo iwconfig wlan0 rate 9MB"
How can I make these settings persistent?
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Dec 14, 2010
left to its own devices my wireless connects at too low a speed. I have a 20meg internet connection and my wireless is slowing it down to like 3meg. When I reboot into windows it's fine. When I run iwconfig eth1 rate 11M or even 24M the connection is much faster and runs fine, why won't it automatically go higher? Is this the fault of the driver? I am running Broadcom's driver compiled from source. Also, how can I set it to 24M at boot?
Edit: I guess I can put iwconfig eth1 rate 24M in rc.local, but I'd still like to get auto running higher, especially as my signal should be pretty good. Output from iwconfig white rate=auto:
eth1 IEEE 802.11 ESSID:"honeypot"
Mode:Managed Frequency:2.417 GHz Access Point: xxx
Bit Rate=1 Mb/s Tx-Power:24 dBm
Retry min limit:7 RTS thrff Fragment thrff
Encryption keyff
[Code]...
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Nov 8, 2010
I'm looking for a USB adapter with driver support for running the interface in master mode.
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Aug 22, 2010
I just installed Fedora 13 from the Live CD. FIrst off I read the guide and the first step doesn't even work for me. System>Administration>Network does not exist. If I go to System then Preferences I see a Network Manager but it looks nothing like what these screen shots look like. [url]
No wireless card show up in the wireless tab of Network Manager. How can I fix this since my card is listed in ifconfig and iwconfig. Wifi card is a Zonet zew2500p
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Nov 10, 2010
I have just upgraded my system to Fedora 14. One thing I noticed after running some applications on it is that it is not possible anymore to figure out on what frequency a wireless interface is using. If I set a wireless interface to monitor mode and perform the iwconfig or iwlist command, in the past, I could see the frequency used on the interface, but now, this information is not present anymore. My wireless interfaces are in monitor mode.
Has the frequency information been removed from iwconfig or iwlist commands? If it has, is there another way to report this information?
Here is an output from iwconfig on my system:
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Sep 18, 2010
I am using backtrak 4 because i wont to hack a wireless network and when i wrote iwconfig it dose not work. see this [url] and i am using dell laptop dell inspiron 1545.
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May 28, 2011
My wireless usb will not attempt to connect to my AP even though it shows in ifconfig and iwconfig:further information which i believe may helplspci -v
00:00.0 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host Bridge
Subsystem: VIA Technologies, Inc. Device aa08
Flags: bus master, 66MHz, medium devsel, latency 8
[code]....
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Mar 21, 2010
Ubuntu 9.04 with working wlan. I had to restart router & wap. It doesn't seem to ever retry to connect. I know my router & wap are good, I have wireless working on other laptop (running Puppy) I had to go into 'edit connections' in drop down and use 'wireless' tab then edit 'wireless connection 1' and hit 'apply' is there a better way to do this? also, no connections show up with command 'iwconfig' edit: with ifconfig, eth1 si showing data my ip address and packets sent & rcvd. I think I'll try do duplicate this event and use 'ifconfig eth1 down' and then up again to see if it reconnects.
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Feb 24, 2010
I'm having some difficulty setting my txpower setting on my atheros wifi card. I am using ath_pci driver on ubuntu 8.1 64 bit. I can set the txpower to whatever, 12dBm for example, it accepts the change but quickly reverts back to a default value of 8dBm. Power saving is off. How can I make these changes permanent, or adjust the default value?
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Apr 4, 2011
I updated my system from FC13 2.6.34.7-66 to 2.6.34.8-68 for both the kernel and the kmod-wl RPM's. After doing so, iwconfig wlan0 key 1234567890 no longer works. I get an error indicating 'invalid argument'. If I reboot using the previous kernel/wl.ko module, it works The size of the wl.ko module increased in size by almost 30%. Did I somehow get the wrong RPM?
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Mar 11, 2010
The adapter I purchased (Zonet ZEW2508 ) uses the Ralink 2070 chipset - a fact that originally excited me because Ralink seems to be fairly loving to the Linux community. However, despite my best efforts I can't get the thing to work. Initially I tried following directions to set up the driver you can download from the Ralink website. The directions I found were written February first, and Ralink updated the driver February eighth - so as far as I can tell the directions no longer work. After screwing around trying to figure that out for a while I decided to give ndiswrapper a go.
Initially this seemed promising. I just harvested the drivers from the CD and followed one of the many ndiswrapper directions available - most helpful seemed initially to be the Ndiswrapper Troubleshooting Guide found in this forum, however the solutions offered there didn't work either. When I throw an ndiswrapper -l into the terminal it looks promising at first, it tells me the driver is installed and the device is present, but it just doesn't work. When I try iwconfig, or iwlist scan it tells me "no wireless extensions," and "interface doesn't support scanning" respectively. The only devices even listed are lo, eth0, and pan0. There's no wlan0 or anything of the sort.
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Apr 7, 2011
how to report the sarg with host name??
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May 31, 2011
Using a Vodafone K3806 USB modem on Ubuntu 9.10, trying to connect with Sakis3g (I already know from previous experience that VMC is out of the question), I get the following message: "Modem responded "ERROR" when checking fror SIM".
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Jan 16, 2010
What does the command "sudo iwconfig eth1 txpower off " do
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Mar 6, 2010
I'm trying to put wlan0 in monitor mode to work out airmong and when I tr to put it into monitor mode
~$ iwconfig wlan0 down
iwconfig: unknown command "down"
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