Minimal Centos 6.6 Wifi Can Scan And See APs But Will Not Connect To An AP

I am currently running a Minimal version of Centos 6.6 Ive searched all over the internet to see if anyone has seen this problem before. I can do a iwlist scan wlan0 and see my AP but it will not connect. I have encryption turned off. Ive tried to use a static and DHCP address in the ifcfg-wlan0 file. I used a laptop to verify that I am able to connecto to my AP and get an IP address so I know the AP is functioning properly.

any help would be appreciated.

Thanks

Running Centos 6.6 Minimal
WIadapter : ASUS USB-N13
Ive installed the following:
Wireless-tools
wpa-supplicant
dbus
r8192cu drivers
rtlwifi-firmware

********messages file has the following when I do a ifup wlan0:

[root@localhost log]# tail -f messages
Feb 10 11:46:54 localhost dhclient[1756]: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x2a6a01ee)
Feb 10 11:46:54 localhost dhclient[1756]: send_packet: No such device or address
Feb 10 11:47:04 localhost dhclient[1756]: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x2a6a01ee)
Feb 10 11:47:04 localhost dhclient[1756]: send_packet: No such device or address
Feb 10 11:47:14 localhost dhclient[1756]: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12 (xid=0x2a6a01ee)
Feb 10 11:47:14 localhost dhclient[1756]: send_packet: No such device or address
Feb 10 11:47:26 localhost dhclient[1756]: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x2a6a01ee)
Feb 10 11:47:26 localhost dhclient[1756]: send_packet: No such device or address
Feb 10 11:47:39 localhost dhclient[1756]: No DHCPOFFERS received.
Feb 10 11:47:39 localhost dhclient[1756]: No working leases in persistent database - sleeping.
Feb 10 11:50:53 localhost dhclient[4075]: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5 (xid=0x5128c82e)
Feb 10 11:50:58 localhost dhclient[4075]: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7 (xid=0x5128c82e)
Feb 10 11:51:05 localhost dhclient[4075]: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 20 (xid=0x5128c82e)

--------------------------------

********When I do a ip link show wlan0:

[root@localhost dispatcher.d]# ip link show wlan0
11: wlan0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
link/ether ac:9e:17:5b:9d:8d brd ff:ff:ff:ff:ff:ff

----------------------------------

*********message log when I do a iwlist wlan0 scan:

Feb 10 11:54:21 localhost dhclient[1756]: send_packet: No such device or address
Feb 10 11:54:36 localhost kernel: _rtw_pwr_wakeup call ips_leave....
Feb 10 11:54:36 localhost kernel: ==>ips_leave cnts:1
Feb 10 11:54:36 localhost kernel: ===> rtw_ips_pwr_up..............
Feb 10 11:54:36 localhost kernel: ===> ips_netdrv_open.........
Feb 10 11:54:36 localhost kernel: ===> FirmwareDownload91C() fw:Rtl819XFwImageArray_TSMC
Feb 10 11:54:36 localhost kernel: FirmwareDownload92C accquire FW from embedded image
Feb 10 11:54:36 localhost kernel: fw_ver=v88, fw_subver=2, sig=0x88c0
Feb 10 11:54:36 localhost kernel: fw download ok!
Feb 10 11:54:36 localhost kernel: Set RF Chip ID to RF_6052 and RF type to 2.
Feb 10 11:54:37 localhost kernel: IQK:Start!!!
Feb 10 11:54:37 localhost kernel: Path A IQK Success!!
Feb 10 11:54:37 localhost kernel: Path B IQK Success!!
Feb 10 11:54:37 localhost kernel: Path A IQK Success!!
Feb 10 11:54:37 localhost kernel: Path B IQK Success!!
Feb 10 11:54:37 localhost kernel: IQK: final_candidate is 0
Feb 10 11:54:37 localhost kernel: IQK: RegE94=fe RegE9C=3ff RegEA4=fd RegEAC=3fa RegEB4=102 RegEBC=b RegEC4=fa RegECC=1
Feb 10 11:54:37 localhost kernel: Path A IQ Calibration Success !
Feb 10 11:54:37 localhost kernel: Path B IQ Calibration Success !
Feb 10 11:54:37 localhost kernel: pdmpriv->TxPowerTrackControl = 1
Feb 10 11:54:37 localhost kernel: rtl8192cu_hal_init in 560ms
Feb 10 11:54:37 localhost kernel: <=== rtw_ips_pwr_up.............. in 569ms
Feb 10 11:54:37 localhost kernel: ==> ips_leave.....LED(0x00028080)...
Feb 10 11:54:38 localhost kernel: survey done event(3a) band:0 for wlan0
Feb 10 11:54:40 localhost dhclient[1756]: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 15 (xid=0x3d6d4ae3)
Feb 10 11:54:40 localhost dhclient[1756]: send_packet: No such device or address
Feb 10 11:54:41 localhost kernel: ==>rtw_ps_processor .fw_state(0)
Feb 10 11:54:41 localhost kernel: ==>ips_enter cnts:2
Feb 10 11:54:41 localhost kernel: ===> rtw_ips_pwr_down...................
Feb 10 11:54:41 localhost kernel: ====> rtw_ips_dev_unload...
Feb 10 11:54:41 localhost kernel: usb_read_port_cancel
Feb 10 11:54:41 localhost kernel: usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
Feb 10 11:54:41 localhost kernel: usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
Feb 10 11:54:41 localhost kernel: usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
Feb 10 11:54:41 localhost kernel: usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
Feb 10 11:54:41 localhost kernel: usb_write_port_cancel
Feb 10 11:54:41 localhost kernel: ==> rtl8192cu_hal_deinit
Feb 10 11:54:41 localhost kernel: bkeepfwalive(0)
Feb 10 11:54:41 localhost kernel: card disble without HWSM...........
Feb 10 11:54:41 localhost kernel: <=== rtw_ips_pwr_down..................... in 30ms
Feb 10 11:54:55 localhost dhclient[1756]: No DHCPOFFERS received.
Feb 10 11:54:55 localhost dhclient[1756]: No working leases in persistent database - sleeping.

-----------------------------------------------------

*********output from iwlist wlan0 scan:

Cell 03 - Address: FC:8F:C4:09:49:5C
ESSID:"ANT"
Protocol:IEEE 802.11b
Mode:Master
Frequency:2.422 GHz (Channel 3)
Encryption keyff
Bit Rates:11 Mb/s
IE: Unknown: DD9E0050F204104A0001101044000102103B0001031047001063041253101920061228FC8FC409495C1021001B5265616C74 656B2053656D69636F6E647563746F7220436F72702E1023000752544C387878781024000D45562D323031302D30392D3230 1042000F3132333435363738393031323334371054000800060050F20400011011000952544B5F41505F3278100800022688 1049000600372A000120
Quality=48/100 Signal level=91/100

---------------------------------------------------------

*******ifcfg-wlan0 ... please note you will see a bunch of #'s just trying different configs:

TYPE=Wireless
DEVICE=wlan0
ESSID=ANT
MODE=Managed
#MODE=Auto
#TYPE=Ethernet
NM_CONTROLLED=no
BOOTPROTO=dhcp
BROADCAST=192.168.100.255
NETMASK=255.255.255.0
IPADDR=192.168.100.10
NETMASK=255.255.255.0
#PREFIX=24
GATEWAY=192.168.100.1
RATE=auto
SECURITYMODE=off
RTS=auto
FRAG=auto
#DEFROUTE=yes
#IPV4_FAILURE_FATAL=yes
#IPV6INIT=no
#NAME=wlan0
UUID=3c9clabd-3ce0-4aea-304a-bf243b69e989
ONBOOT=no
ONHOTPLUG=yes
HWADDR=AC:9E:17:5B:9D:8D
PEERDNS=no
#PEERROUTES=yes

Postfix Email Not Working In Oracle Linux

I have setup postfix in Oracle Linux VM in virtualbox to test simple email sends that I am sending it to my personal email.

I have configured the following in main.cf file

myhostname = abc.testserver.org
myorigin = $myhostname
inet_interfaces = localhost
#relayhost = localhost.localdomain - I have this commented as of now, but I tried with the localhost.localdomain, IP address and none worked. I also do not have my ISP's server details and I also do not want to use it.

I checked the /var/log/maillog and I see the following

Code:

May  4 17:25:37 oim sendmail[31684]: t44LPbKA031684: from=root, size=72, class=0, nrcpts=1, msgid=<201505042125.t44LPbKA031684@localhost.localdomain>, relay=root@localhost
May  4 17:25:37 oim sendmail[31685]: t44LPbSn031685: from=<root@localhost.localdomain>, size=378, class=0, nrcpts=1, msgid=<201505042125.t44LPbKA031684@localhost.localdomain>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
May  4 17:25:37 oim sendmail[31684]: t44LPbKA031684: to=abc@abc.com, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30072, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (t44LPbSn031685 Message accepted for delivery)

I can also see the messages in /var/spool/mqueue/. The telnet to the localhost 25 port also works. Is any of the config settings wrong?

Thanks.

Tree Cmd Is Not Working

Hi All,

Not able to find TREE command in EL6, its working fine in EL5. Need help on this.

Below are the details.

[root@localhost ~]# mkdir -p /college/sports/performer/cricket

[root@localhost ~]# tree /college/
-bash: tree: command not found

[root@localhost ~]# tree college/
-bash: tree: command not found

[root@localhost ~]# which tree
/usr/bin/which: no tree in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin: /usr/bin:/root/bin)

[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.32-71.el6.x86_64 #1 SMP Wed Sep 1 01:33:01 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

[root@localhost ~]# id
uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023

Hostname Missing In CLI

Bare with the noob here

For some reason, when I open terminal, the prompt has changed from the usual user@localhost to user@xx-xx-xx-xx-xx-xx where the xx are numbers/letters, I am assuming hexadecimals?

Why?

The title bar of the terminal window still shows user@localhost:~ , HOSTNAME is still localhost.localdomain, so whats with the gibberish at the prompt?

Installed Vsftpd But Can Not Use

I have install vsftpd and start it , but when when to try it by "ftp localhost" , but not work , would advise what is wrong ? thanks

#ps -ef |grep ftp
Code:

root     29896     1  0 10:53 ?        00:00:00 /usr/sbin/vsftpd /etc/vsftpd/vsftpd.conf
root     29899 23821  0 10:53 pts/0    00:00:00 grep ftp

# ftp localhost
Code:

Connected to localhost (127.0.0.1).
421 Service not available.

Error:cannot Retrieve Repository Metadata (repomd.xml) For Repository: Fedora

Hi.
I am completely new in Linux and I'm trying to learn as much as I can while doing my job.

I am following directions from a wi-fi card vendor. In it, they require to download Fedora 13 to the laptop, which I have already done so. uname -a displays:
Linux localhost.localdomain 2.6.33.3-85.fc13.i868.PAE #1.

The directions ask to update the kernel with "yum install kernel-PAE". While connected to the internet, when I type that, the following error comes up:
Loaded plugin : presto, refresh-packagekit
Error: cannot retrieve repository metadata (repomd.xml) for repository: fedora
Please verify its path and try again

What does it mean and what file do I need to update with the right path? Please, let me know what other information you need.
Thank you very much

Localhost:8000 Connection Troubleshooting

url localhost:8000 displays standard error message "Unable to connect, Firefox can't establish a connection to the server".

????? Que dois-je faire ????? (What should I do about it ??? )

Hmmm...

Problem With Unsupported Fedora, Download The Last Version

hello all
I already have fedora 14 32bit and I install it on vmwear in order to install ns2.35allinone but when I follow the steps I got the following error in the first step

[fedora@localhost ~]$ su
Password:
[root@localhost fedora]# yum install autoconf
Loaded plugins: langpacks, presto, refresh-packagekit
Adding en_US to language list
Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora. Please verify its path and try again
[root@localhost fedora]#

and I read many post to solve this problem and as I understand from it fedora 14 is now unsupported. so please if you can help me to fix this problem or post any url to download the last version of fedora in order to install ns2.35allinone to run zrp protocol.

thanks a lot

Can Not Connect Ftp Server

I have installed vsftp to the server , the status is running now , but when use the command "ftp localhost" , it pops the "421 Service not available." , would advise what is wrong ? thanks

bash-3.2# /etc/rc.d/init.d/vsftpd status
vsftpd (pid 580) is running...
bash-3.2# ps -ef |grep vsftpd
root 580 1 0 15:44 ? 00:00:00 /usr/sbin/vsftpd /etc/vsftpd/vsftpd.conf
root 607 467 0 15:45 pts/0 00:00:00 grep vsftpd
bash-3.2# ftp localhost
Connected to localhost (127.0.0.1).
421 Service not available.

Forgotten/compromised Password For Localhost Username Root

hi sir.need ur help. a desktop comp is endorsed to me with Linux system. the previous user failed to give the password for localhost root and im not able to login to the system. I really need to backup the files and programs installed and afraid to reboot since our database program is installed in the pc. would really appreciate your help.ty

Getting The Last Background Pid

Hi, I know that it is possible to get the last background pid using the $! command, however when I use it in my QT application I got a wrong result. Below follows an example where this procedure works
Code:

[linux@localhost ~]$ (sleep 6 && echo "A test") &
[1] 3312
[linux@localhost ~]$ echo $!
3312
[linux@localhost ~]$ A test

Now my Qt application, where I got a wrong result:
Code:

./dbsync &>/dev/null &
[1] 5047
[linux@localhost comm5]$ echo $!
5047

but using the ps command it is possible to verify that the pid related to the right process is not the 5047 but 5050.
Generally it is the process that comes with the command Code:

echo $!

added of two.

I use QCoreApplication in my program. I do not know if it has something to do with this error.

Any advice is welcome

Minimal Centos 6.6 Wifi Can Scan And See APs But Will Not Connect To An AP

Similar Content