[SOLVED] Intel Wireless card connectivity Issue - Mint 15

[Stretchkev1]

Hi,

I recently did a clean install of Linux 15 Mint: Cinnamon, after rebooting I can't connect to my Wi-Fi network. My network pops up no problem, but after entering my password Mint thinks for a minute or two, but it fails to connect every time. t this point I don't know how to diagnosis the issue without being able to connect to the network. Any help would be appreciated.

Machine: ASUS U56E

[Stretchkev1]

lsmod

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Module                  Size  Used by
nls_iso8859_1          12713  0 
usb_storage            57204  0 
parport_pc             28152  0 
ppdev                  17073  0 
bnep                   18036  2 
rfcomm                 42641  0 
bluetooth             228619  10 bnep,rfcomm
binfmt_misc            17500  1 
uvcvideo               80847  0 
i2400m_usb             36375  0 
i2400m                107578  1 i2400m_usb
videobuf2_vmalloc      13056  1 uvcvideo
videobuf2_memops       13202  1 videobuf2_vmalloc
videobuf2_core         40513  1 uvcvideo
wimax                  34760  1 i2400m
videodev              129260  2 uvcvideo,videobuf2_core
joydev                 17377  0 
snd_hda_codec_hdmi     36913  1 
snd_hda_codec_realtek    78399  1 
arc4                   12615  2 
snd_hda_intel          39619  3 
snd_hda_codec         136453  3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
iwldvm                241834  0 
snd_hwdep              13602  1 snd_hda_codec
snd_pcm                97451  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd_page_alloc         18710  2 snd_pcm,snd_hda_intel
coretemp               13355  0 
mac80211              606457  1 iwldvm
kvm_intel             132891  0 
snd_seq_midi           13324  0 
kvm                   443165  1 kvm_intel
snd_seq_midi_event     14899  1 snd_seq_midi
ghash_clmulni_intel    13259  0 
aesni_intel            55399  0 
snd_rawmidi            30180  1 snd_seq_midi
aes_x86_64             17255  1 aesni_intel
xts                    12885  1 aesni_intel
lrw                    13257  1 aesni_intel
gf128mul               14951  2 lrw,xts
ablk_helper            13597  1 aesni_intel
cryptd                 20373  3 ghash_clmulni_intel,aesni_intel,ablk_helper
snd_seq                61554  2 snd_seq_midi_event,snd_seq_midi
snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer              29425  2 snd_pcm,snd_seq
snd                    68876  16 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device
iwlwifi               173477  1 iwldvm
asus_nb_wmi            12854  0 
asus_wmi               24213  1 asus_nb_wmi
sparse_keymap          13890  1 asus_wmi
cfg80211              510937  3 iwlwifi,mac80211,iwldvm
mac_hid                13205  0 
mei                    41158  0 
soundcore              12680  1 snd
psmouse                95870  0 
lpc_ich                17061  0 
microcode              22881  0 
lp                     17759  0 
serio_raw              13215  0 
parport                46345  3 lp,ppdev,parport_pc
dm_multipath           22843  0 
scsi_dh                14843  1 dm_multipath
btrfs                 785967  0 
zlib_deflate           26885  1 btrfs
libcrc32c              12615  1 btrfs
dm_raid45              76725  0 
xor                    17116  1 dm_raid45
dm_mirror              21946  0 
dm_region_hash         20820  1 dm_mirror
dm_log                 18529  3 dm_region_hash,dm_mirror,dm_raid45
hid_generic            12540  0 
usbhid                 47074  0 
hid                   101002  2 hid_generic,usbhid
atl1c                  41071  0 
i915                  600351  3 
ahci                   25731  2 
libahci                31364  1 ahci
wmi                    19070  1 asus_wmi
video                  19390  2 i915,asus_wmi
i2c_algo_bit           13413  1 i915
drm_kms_helper         49394  1 i915
drm                   286313  4 i915,drm_kms_helper

lspci -vnn

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00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor Family DRAM Controller [8086:0104] (rev 09)
	Subsystem: ASUSTeK Computer Inc. Device [1043:1157]
	Flags: bus master, fast devsel, latency 0
	Capabilities: <access denied>

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
	Subsystem: ASUSTeK Computer Inc. Device [1043:1582]
	Flags: bus master, fast devsel, latency 0, IRQ 50
	Memory at dd000000 (64-bit, non-prefetchable) [size=4M]
	Memory at c0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at e000 [size=64]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915

00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)
	Subsystem: ASUSTeK Computer Inc. Device [1043:1157]
	Flags: bus master, fast devsel, latency 0, IRQ 51
	Memory at dfc0b000 (64-bit, non-prefetchable) [size=16]
	Capabilities: <access denied>
	Kernel driver in use: mei

00:1a.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 05) (prog-if 20 [EHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:1157]
	Flags: bus master, medium devsel, latency 0, IRQ 16
	Memory at dfc08000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller [8086:1c20] (rev 05)
	Subsystem: ASUSTeK Computer Inc. Device [1043:1bd3]
	Flags: bus master, fast devsel, latency 0, IRQ 53
	Memory at dfc00000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 [8086:1c10] (rev b5) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: df200000-dfbfffff
	Prefetchable memory behind bridge: 00000000d2100000-00000000d2afffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.1 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 [8086:1c12] (rev b5) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 0000c000-0000cfff
	Memory behind bridge: de800000-df1fffff
	Prefetchable memory behind bridge: 00000000d1600000-00000000d1ffffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.3 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 [8086:1c16] (rev b5) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	I/O behind bridge: 0000b000-0000bfff
	Memory behind bridge: dde00000-de7fffff
	Prefetchable memory behind bridge: 00000000d0b00000-00000000d14fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.5 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 [8086:1c1a] (rev b5) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
	I/O behind bridge: 0000a000-0000afff
	Memory behind bridge: dd400000-dddfffff
	Prefetchable memory behind bridge: 00000000d0000000-00000000d09fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1d.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 [8086:1c26] (rev 05) (prog-if 20 [EHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:1157]
	Flags: bus master, medium devsel, latency 0, IRQ 23
	Memory at dfc07000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:1f.0 ISA bridge [0601]: Intel Corporation HM65 Express Chipset Family LPC Controller [8086:1c49] (rev 05)
	Subsystem: ASUSTeK Computer Inc. Device [1043:1157]
	Flags: bus master, medium devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller [8086:1c03] (rev 05) (prog-if 01 [AHCI 1.0])
	Subsystem: ASUSTeK Computer Inc. Device [1043:1157]
	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 49
	I/O ports at e0b0 [size=8]
	I/O ports at e0a0 [size=4]
	I/O ports at e090 [size=8]
	I/O ports at e080 [size=4]
	I/O ports at e060 [size=32]
	Memory at dfc06000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller [8086:1c22] (rev 05)
	Subsystem: ASUSTeK Computer Inc. Device [1043:1157]
	Flags: medium devsel, IRQ 3
	Memory at dfc05000 (64-bit, non-prefetchable) [size=256]
	I/O ports at e040 [size=32]

02:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N + WiMAX 6150 [8086:0885] (rev 67)
	Subsystem: Intel Corporation Centrino Wireless-N + WiMAX 6150 BGN [8086:1305]
	Flags: bus master, fast devsel, latency 0, IRQ 52
	Memory at de800000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi

03:00.0 USB controller [0c03]: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller [1b21:1042] (prog-if 30 [XHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:1059]
	Flags: bus master, fast devsel, latency 0, IRQ 19
	Memory at dde00000 (64-bit, non-prefetchable) [size=32K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd

04:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet [1969:1083] (rev c0)
	Subsystem: ASUSTeK Computer Inc. Device [1043:1851]
	Flags: bus master, fast devsel, latency 0, IRQ 54
	Memory at dd400000 (64-bit, non-prefetchable) [size=256K]
	I/O ports at a000 [size=128]
	Capabilities: <access denied>
	Kernel driver in use: atl1c

[Stretchkev1]

So I have tried the following:

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echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
sudo modprobe -r iwldvm
sudo modprobe -rfv iwlwifi
sudo modprobe -v iwlwifi

Has stopped the endless thinking, but it not keeps asking for authentication without connecting. Any suggestions?

[rokytnji]

Try posting

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mintwifi

and

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inxi -Fxz

instead. Mint 15 sure has a lot of wireless bugs from rt2800pci to now iwlwifi. I am not sure what is up because I run Mint 14 with a

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Network:   Card-1: Atheros AR9285 Wireless Network Adapter (PCI-Express) driver: ath9k 
           IF: wlan0 state: up mac: <filtered> 

Wireless n chip instead with no problems with wpa-psk protected networks.

[rokytnji]

You might wnat to run rfkill list also in case wireless is turned off on the keyboard or bios or is softblocked.

Mine as a example

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 $ rfkill list
0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: samsung-wlan: Wireless LAN
	Soft blocked: no
	Hard blocked: no

[Stretchkev1]

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$ mintwifi
-------------------------
* I. scanning WIFI PCI devices...
  -- Intel Corporation Centrino Wireless-N + WiMAX 6150 (rev 67)
      ==> PCI ID = 8086:0885 (rev 67)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
wmx0      no wireless extensions.

eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"2WIRE725"  
          Mode:Managed  Frequency:2.427 GHz  Access Point: Not-Associated   
          Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          
-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr c8:60:00:2c:fc:47  
          inet addr:192.168.1.67  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::ca60:ff:fe2c:fc47/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:404245 errors:0 dropped:0 overruns:0 frame:0
          TX packets:264456 errors:0 dropped:0 overruns:0 carrier:3
          collisions:0 txqueuelen:1000 
          RX bytes:567223260 (567.2 MB)  TX bytes:23744206 (23.7 MB)

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:65536  Metric:1
          RX packets:5786 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5786 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:516005 (516.0 KB)  TX bytes:516005 (516.0 KB)

wlan0     Link encap:Ethernet  HWaddr 40:25:c2:a8:6a:c0  
          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)

wmx0      Link encap:Ethernet  HWaddr 64:d4:da:69:cd:f0  
          UP NOARP  MTU:1400  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:20 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

-------------------------
* V. querying DHCP...
[sudo] password for stretch: 
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
-------------------------
* VI. querying nslookup google.com...
Server:		192.168.1.254
Address:	192.168.1.254#53

Non-authoritative answer:
Name:	google.com
Address: 74.125.225.110
Name:	google.com
Address: 74.125.225.96
Name:	google.com
Address: 74.125.225.97
Name:	google.com
Address: 74.125.225.98
Name:	google.com
Address: 74.125.225.99
Name:	google.com
Address: 74.125.225.100
Name:	google.com
Address: 74.125.225.101
Name:	google.com
Address: 74.125.225.102
Name:	google.com
Address: 74.125.225.103
Name:	google.com
Address: 74.125.225.104
Name:	google.com
Address: 74.125.225.105

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$ inxi -Fxz
System:    Host: stretch Kernel: 3.8.0-19-generic x86_64 (64 bit, gcc: 4.7.3) Desktop: Gnome Distro: Linux Mint 15 Olivia
Machine:   Mobo: ASUSTeK model: U56E version: 1.0 Bios: American Megatrends version: U56E.213 date: 12/21/2011
CPU:       Dual core Intel Core i5-2450M CPU (-HT-MCP-) cache: 3072 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 9977.98 
           Clock Speeds: 1: 800.00 MHz 2: 800.00 MHz 3: 800.00 MHz 4: 2501.00 MHz
Graphics:  Card: Intel 2nd Generation Core Processor Family Integrated Graphics Controller bus-ID: 00:02.0 
           X.Org: 1.13.3 drivers: intel (unloaded: fbdev,vesa) Resolution: 1366x768@60.0hz 
           GLX Renderer: Mesa DRI Intel Sandybridge Mobile GLX Version: 3.0 Mesa 9.1.3 Direct Rendering: Yes
Audio:     Card: Intel 6 Series/C200 Series Chipset Family High Definition Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
           Sound: Advanced Linux Sound Architecture ver: k3.8.0-19-generic
Network:   Card-1: Intel Centrino Wireless-N + WiMAX 6150 driver: iwlwifi ver: in-tree: bus-ID: 02:00.0
           IF: wlan0 state: down mac: <filter>
           Card-2: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet driver: atl1c ver: 1.0.1.1-NAPI port: a000 bus-ID: 04:00.0
           IF: eth0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives:    HDD Total Size: 750.2GB (1.1% used) 1: id: /dev/sda model: Hitachi_HTS54757 size: 750.2GB temp: 31C 
Partition: ID: / size: 682G used: 7.9G (2%) fs: ext4 ID: swap-1 size: 6.34GB used: 0.00GB (0%) fs: swap 
RAID:      No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Sensors:   System Temperatures: cpu: 51.0C mobo: N/A 
           Fan Speeds (in rpm): cpu: N/A 
Info:      Processes: 208 Uptime: 9:17 Memory: 1241.0/5874.0MB Runlevel: 2 Gcc sys: 4.7.3 Client: Shell inxi: 1.8.4

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$ rfkill list
1: asus-wlan: Wireless LAN
	Soft blocked: no
	Hard blocked: no
2: asus-wimax: WiMAX
	Soft blocked: no
	Hard blocked: no
3: i2400m-usb:1-1.1:1.0: WiMAX
	Soft blocked: yes
	Hard blocked: no
4: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

[rokytnji]

My bad: double post. So I guess I will put something useful in it.

http://www.googlubuntu.com/

http://search.debian.org/

[rokytnji]

Code: Select all

3: i2400m-usb:1-1.1:1.0: WiMAX
   Soft blocked: yes

"Soft blocked" means "blocked by software". A faulty driver or other kernel module can lead to connectivity loss. So at least we know now that your problem is not a hot key switch on keyboard or a
bios setting.

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sudo rfkill unblock all

Then try rfkill list again to see if that took.

Since the info in INXI helped me. I found this on the forum

http://forum.linuxmint.com/viewtopic.php?f=53&t=117773
http://forums.linuxmint.com/viewtopic.php?f=90&t=114978&hilit=iwlwifi

Good luck with it and Happy Trails, Rok

Edit: you might need a reboot after running sudo rfkill unblock all. I am not sure though if a reboot is needed though.

[Stretchkev1]

Niether of those things worked. Still shows a soft block after trying the rfkill unblock and reboot. And I can't get very far with the modify command since it keeps giving me a fatal error:

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FATAL: Module iwlagn not found.

[rokytnji]

FATAL: Module iwlagn not found.

That is because iwlwifi took iwlagn place as the module for your chip. Scratches head.

http://askubuntu.com/questions/119578/how-to-fix-slow-wireless-on-machines-with-intel-wireless-cards

Maybe better? Just wondering. Why can't you just roll back to a earlier kernel? Use the shift key on power up to bring up grub menu choices.

Edit: oops. I thought upgrade meant a kernel upgrade. I see this is a clean install.

[Stretchkev1]

Solved the problem with a file edit to the wifi configuration:

Command:

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gksudo gedit /etc/modprobe.d/iwlwifi.conf

Paste to file:

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options iwlwifi 11n_disable=1 swcrypto=1 bt_coex_active=N

Save, close gedit, and reboot.

[lelouch86]

Thanks, I was having slow connectivity on a clean install of Linux Mint 15 MATE. I put in the options line in the .conf file and my speed is back to normal.

[bladestorm]

SOLUTION :

If you can connect to the internet with a hardline, or through an unsecured network then it is a software problem. If you are being asked for a the passkey repeatedly even after entering the correct one, it is again a software problem.

To check the block execute:

rfkill list

This command should show something like
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
2: i2400m-usb:2-1.5:1.0: WiMAX
Soft blocked: yes
Hard blocked: no

The problem is being caused by a software error

Execute this in the terminal window to remove the softblocks:

rfkill unblock all

And there you have it. Your password should work now.