Wifi goes down after 15-20 minutes work.

kairen · 05-27-2015, 03:48 AM

Hi,

Several days ago my laptop suddenly started to lose wifi connection after only 15-20 minutes up. The wifi router is fine. The wired connection is OK. I run all Dell utilities and no errors were found.
It is a i7 with Slackware64 14.1.

Some quotes from syslog:

Quote:

May 27 08:10:06 ErikDT NetworkManager[751]: <warn> failed to allocate link cache: (-10) Operation not supported
May 27 08:10:07 ErikDT NetworkManager[751]: <warn> /sys/devices/virtual/net/lo: couldn't determine device driver; ignoring...
May 27 08:10:07 ErikDT NetworkManager[751]: <warn> /sys/devices/virtual/net/lo: couldn't determine device driver; ignoring...
May 27 08:10:10 ErikDT NetworkManager[751]: <warn> Trying to remove a non-existant call id.

Quote:

May 27 08:34:15 ErikDT kernel: [ 1489.205818] iwlwifi 0000:04:00.0: fail to flush all tx fifo queues Q 0
May 27 08:34:15 ErikDT kernel: [ 1489.205828] iwlwifi 0000:04:00.0: Current SW read_ptr 19 write_ptr 20
May 27 08:34:15 ErikDT kernel: [ 1489.222230] iwl data: 00000000: 10 93 37 33 01 88 ff ff 40 86 37 33 01 88 ff ff ..73....@.73....
May 27 08:34:16 ErikDT kernel: [ 1489.238660] iwlwifi 0000:04:00.0: FH TRBs(0) = 0x5a5a5a5a
May 27 08:34:16 ErikDT kernel: [ 1489.255113] iwlwifi 0000:04:00.0: FH TRBs(1) = 0x5a5a5a5a
May 27 08:34:16 ErikDT kernel: [ 1489.271572] iwlwifi 0000:04:00.0: FH TRBs(2) = 0x5a5a5a5a
May 27 08:34:16 ErikDT kernel: [ 1489.288110] iwlwifi 0000:04:00.0: FH TRBs(3) = 0x5a5a5a5a
May 27 08:34:16 ErikDT kernel: [ 1489.304672] iwlwifi 0000:04:00.0: FH TRBs(4) = 0x5a5a5a5a
May 27 08:34:16 ErikDT kernel: [ 1489.321121] iwlwifi 0000:04:00.0: FH TRBs(5) = 0x5a5a5a5a
May 27 08:34:16 ErikDT kernel: [ 1489.337555] iwlwifi 0000:04:00.0: FH TRBs(6) = 0x5a5a5a5a
May 27 08:34:16 ErikDT kernel: [ 1489.354037] iwlwifi 0000:04:00.0: FH TRBs(7) = 0x5a5a5a5a
May 27 08:34:16 ErikDT kernel: [ 1489.387015] ------------[ cut here ]------------
May 27 08:34:16 ErikDT kernel: [ 1489.387031] WARNING: at drivers/net/wireless/iwlwifi/iwl-trans.h:757 iwl_trans_pcie_wait_txq_empty+0x363/
0x3d0 [iwlwifi]()

Quote:

May 27 08:34:26 ErikDT kernel: [ 1500.164328] iwlwifi 0000:04:00.0: Q 19 is active and mapped to fifo 2 ra_tid 0xa5a5 [90,1515870810]
May 27 08:34:28 ErikDT kernel: [ 1502.163352] iwlwifi 0000:04:00.0: Error sending POWER_TABLE_CMD: time out after 2000ms.
May 27 08:34:28 ErikDT kernel: [ 1502.163358] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 114
May 27 08:34:28 ErikDT kernel: [ 1502.163361] iwlwifi 0000:04:00.0: set power fail, ret = -110
May 27 08:34:30 ErikDT NetworkManager[751]: <warn> Connection disconnected (reason -4)
May 27 08:34:30 ErikDT kernel: [ 1504.162507] iwlwifi 0000:04:00.0: Error sending REPLY_RXON: time out after 2000ms.
May 27 08:34:30 ErikDT kernel: [ 1504.162516] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 115
May 27 08:34:30 ErikDT kernel: [ 1504.162522] iwlwifi 0000:04:00.0: Error clearing ASSOC_MSK on BSS (-110)
May 27 08:34:33 ErikDT kernel: [ 1506.261567] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:34:33 ErikDT kernel: [ 1506.261576] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 116
May 27 08:34:36 ErikDT kernel: [ 1509.261393] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:34:36 ErikDT kernel: [ 1509.261402] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 117
May 27 08:34:39 ErikDT kernel: [ 1512.261033] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:34:39 ErikDT kernel: [ 1512.261044] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 118
May 27 08:34:42 ErikDT kernel: [ 1515.260832] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:34:42 ErikDT kernel: [ 1515.260841] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 119
May 27 08:34:45 ErikDT kernel: [ 1518.259443] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:34:45 ErikDT kernel: [ 1518.259448] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 120
May 27 08:34:46 ErikDT NetworkManager[751]: <warn> (wlan0): link timed out.
May 27 08:34:46 ErikDT NetworkManager[751]: <warn> Activation (wlan0) failed for connection 'dlink'
May 27 08:34:48 ErikDT kernel: [ 1521.259118] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:34:48 ErikDT kernel: [ 1521.259126] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 121
May 27 08:34:48 ErikDT NetworkManager[751]: <warn> (pid 767) unhandled DHCP event for interface wlan0
May 27 08:34:50 ErikDT kernel: [ 1523.364250] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:34:53 ErikDT kernel: [ 1526.487017] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:34:53 ErikDT kernel: [ 1526.487026] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 123
May 27 08:35:16 ErikDT kernel: [ 1549.477386] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:35:16 ErikDT kernel: [ 1549.477395] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 125
May 27 08:35:49 ErikDT kernel: [ 1582.463482] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:35:49 ErikDT kernel: [ 1582.463491] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 126
May 27 08:36:32 ErikDT kernel: [ 1625.448287] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:36:32 ErikDT kernel: [ 1625.448296] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 127
May 27 08:37:25 ErikDT kernel: [ 1678.422895] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:37:25 ErikDT kernel: [ 1678.422904] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 128
May 27 08:38:28 ErikDT kernel: [ 1741.396289] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:38:28 ErikDT kernel: [ 1741.396298] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 129
May 27 08:39:31 ErikDT kernel: [ 1804.371675] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
May 27 08:39:31 ErikDT kernel: [ 1804.371684] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 100 write_ptr 130
May 27 08:40:32 ErikDT kernel: [ 1865.344266] iwlwifi 0000:04:00.0: No space in command queue
May 27 08:40:32 ErikDT kernel: [ 1865.344275] iwlwifi 0000:04:00.0: Restarting adapter queue is full
May 27 08:40:32 ErikDT kernel: [ 1865.344286] iwlwifi 0000:04:00.0: Error sending REPLY_SCAN_CMD: enqueue_hcmd failed: -28
May 27 08:40:39 ErikDT kernel: [ 1867.033290] iwlwifi 0000:04:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]
May 27 08:40:39 ErikDT kernel: [ 1868.738824] iwlwifi 0000:04:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]
May 27 08:40:39 ErikDT kernel: [ 1870.477268] iwlwifi 0000:04:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]
May 27 08:40:39 ErikDT kernel: [ 1872.183336] iwlwifi 0000:04:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]
May 27 08:40:54 ErikDT kernel: [ 1879.566834] iwlwifi 0000:04:00.0: Failed to load firmware chunk!
May 27 08:40:54 ErikDT kernel: [ 1879.566844] iwlwifi 0000:04:00.0: Could not load the [0] uCode section
May 27 08:40:54 ErikDT kernel: [ 1879.566852] iwlwifi 0000:04:00.0: Failed to start RT ucode: -110
May 27 08:40:54 ErikDT kernel: [ 1881.399252] iwlwifi 0000:04:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]
May 27 08:40:54 ErikDT kernel: [ 1883.288256] iwlwifi 0000:04:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]
May 27 08:40:54 ErikDT kernel: [ 1885.232617] iwlwifi 0000:04:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]
May 27 08:40:54 ErikDT kernel: [ 1887.197386] iwlwifi 0000:04:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]
May 27 08:40:56 ErikDT kernel: [ 1889.120842] iwlwifi 0000:04:00.0: Unable to initialize device.
May 27 08:41:35 ErikDT kernel: [ 1928.317850] iwlwifi 0000:04:00.0: Request scan called when driver not ready.
May 27 08:42:38 ErikDT kernel: [ 1991.291128] iwlwifi 0000:04:00.0: Request scan called when driver not ready.
May 27 08:43:41 ErikDT kernel: [ 2054.266306] iwlwifi 0000:04:00.0: Request scan called when driver not ready.
May 27 08:44:44 ErikDT kernel: [ 2117.237789] iwlwifi 0000:04:00.0: Request scan called when driver not ready.

There are more of the same kind. Please if someone can explain what those are, I will be grateful.

Thanks

hf2046 · 05-27-2015, 08:25 AM

What is your wireless card?

kairen · 05-27-2015, 10:33 AM

lspci

Quote:

Network controller: Intel Corporation Centrino Wireless-N 1000 [Condor Peak]

maciuszek · 05-27-2015, 03:04 PM

Doubt i can help more than saying I've had physical issues with that nic before.

Edit: Thinking about it more I was presuming it had something to do with the nic but in the end it was an issue with the motherboard, similar symptoms but these can apply to many other cases of course; disconnects although in addition wonky connections.

hf2046 · 05-27-2015, 03:51 PM

The following thread might help:

http://ubuntuforums.org/showthread.php?t=2188827

See post #10. Is the system loading the correct firmware for your wifi adapter?

kairen · 05-28-2015, 01:46 AM

Quote:

Originally Posted by maciuszek

Doubt i can help more than saying I've had physical issues with that nic before.

Edit: Thinking about it more I was presuming it had something to do with the nic but in the end it was an issue with the motherboard, similar symptoms but these can apply to many other cases of course; disconnects although in addition wonky connections.

It is possible to be a motherboard problem because when I try to restart (after losing connection) it will freeze while hardware check before getting to the boot loader. And maybe it is some kind of overheating problem. It is a 4 years old laptop it might need cleaning.

Anyway, thanks.

kairen · 05-28-2015, 01:58 AM

Quote:

Originally Posted by hf2046

The following thread might help:

http://ubuntuforums.org/showthread.php?t=2188827

See post #10. Is the system loading the correct firmware for your wifi adapter?

cat dmesg | grep firmware

Quote:

[ 7.030612] iwlwifi 0000:04:00.0: loaded firmware version 39.31.5.1 build 35138 op_mode iwldvm

Thanks for suggestion

kairen · 06-01-2015, 12:52 AM

Now the wired connection is doing the same. Should I try reinstalling network package?

jostber · 06-01-2015, 03:15 AM

Can you try to turn off ipv6 and see if that works?

https://bbs.archlinux.org/viewtopic.php?id=127075

Head_on_a_Stick · 06-01-2015, 04:32 AM

Some suggestions here, they should work with Slackware:
http://forums.debian.net/viewtopic.p...576226#p575514

rodolpho · 06-04-2015, 09:35 AM

I had the same problem and did something similar to the link Head_on_a_Stick posted: added "options iwlwifi 11n_disable=1" to a file in /etc/modprobe.d.

kairen · 06-04-2015, 11:53 PM

Thanks for the suggestions but now the laptop wont boot at all. It can't go through the initial POST. Time to call the service guys I think.