wireless problem

[Mihailo]

I have a problem with wireless connection. It disables itself every 10 minutes!


System: Host: 1038 Kernel: 3.16.0-38-generic i686 (32 bit, gcc: 4.8.2)
Desktop: Cinnamon 2.6.13 Distro: Linux Mint 17.2 Rafaela
Machine: System: LENOVO product: 2718V7B version: ThinkPad R500
Mobo: LENOVO model: 2718V7B Bios: LENOVO version: 7YET85WW (3.15 ) date: 02/13/2012
CPU: Dual core Intel Core2 Duo CPU T6670 (-MCP-) cache: 2048 KB flags: (lm nx pae sse sse2 sse3 sse4_1 ssse3 vmx) bmips: 8777.5
Clock Speeds: 1: 1200.00 MHz 2: 1200.00 MHz
Graphics: Card: Intel Mobile 4 Series Integrated Graphics Controller bus-ID: 00:02.0
X.Org: 1.15.1 drivers: intel (unloaded: fbdev,vesa) Resolution: 1280x800@60.0hz
GLX Renderer: Mesa DRI Mobile Intel GM45 Express x86/MMX/SSE2 GLX Version: 2.1 Mesa 10.1.3 Direct Rendering: Yes
Audio: Card: Intel 82801I (ICH9 Family) HD Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture ver: k3.16.0-38-generic
Network: Card-1: Broadcom NetLink BCM5787M Gigabit Ethernet PCI Express driver: tg3 ver: 3.137 bus-ID: 04:00.0
IF: eth0 state: down mac: <filter>
Card-2: Intel PRO/Wireless 5100 AGN [Shiloh] Network Connection driver: iwlwifi ver: in-tree: bus-ID: 03:00.0
IF: wlan0 state: up mac: <filter>
Drives: HDD Total Size: 80.0GB (18.6% used) 1: id: /dev/sda model: WDC_WD800BEVS size: 80.0GB
Partition: ID: / size: 72G used: 14G (21%) fs: ext4 ID: swap-1 size: 2.04GB used: 0.11GB (5%) fs: swap
RAID: No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Sensors: System Temperatures: cpu: 57.0C mobo: 46.0C
Fan Speeds (in rpm): cpu: 2734
Info: Processes: 166 Uptime: 2:30 Memory: 779.2/1915.9MB Runlevel: 2 Gcc sys: 4.8.4
Client: Shell (bash 4.3.11) inxi: 1.9.17

[Pjotr]

What does this command give as output:

Code: Select all

iwconfig

[Mihailo]

wlan0 IEEE 802.11abgn ESSID:"LAN1"
Mode:Managed Frequency:2.462 GHz Access Point: C2:9F:DB:09:0F:6C
Bit Rate=6 Mb/s Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=41/70 Signal level=-69 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:27 Invalid misc:534 Missed beacon:0

lo no wireless extensions.

eth0 no wireless extensions.

[Pjotr]

OK.... Try the following things:

1. Select the optimal channel for your network:
https://sites.google.com/site/easylinux ... st-channel
(item 1, left column)

2. Make sure that your network meets the following requirements:
- WPA2 Personal with "AES only" (no TKIP);
- Visible network name (SSID), so not hidden. Hiding the SSID is even dangerous(!):
https://sites.google.com/site/easylinux ... tywireless
(item 1, left column)

3. Disable IPv6:
https://sites.google.com/site/easylinux ... onnection-
(item 8, right column)

[Mihailo]

Thanks for the reply. I think I fixed it. I just need to let the LAN1 tap open.

Anyways, thanks! If the problem still persist, I will try to do that!

[xdicey]

[quote="Mihailo"].... I just need to let the LAN1 tap open.

Mihailo,
How exactly is this done? I have been having the same issue on and off for awhile now but let it go since it's more on than off. I'd like to fix it for good if possible. Do you mind sharing how you did the LAN1 thing?

thx

[Mihailo]

Well, for LAN internet (wireless) you need to login into your account and don't close that tab, just while working, it should stay opened.

[Fellere]

Worked great, thanks

[xdicey]

Well, for LAN internet (wireless) you need to login into your account and don't close that tab, just while working, it should stay opened.

That's an interesting fix. I did try Pjotr's 3 suggestions but that didn't work. Perhaps my problem, though similar, has a different cause.

thanks very much. I may just have to post separately.

[Fellere]

Worked great, thanks

Hmm i spoke to soon, problem is back despite trying Pjotr's suggestions.

[yeti]

I'm having somewhat the same experience described at the start of this thread.
I also have a broadcom wifi in my Inspiron.
My Broadband wifi works fine until about 10 minutes of no activity, then I have to click on my wireless
icon to get DNS going again.
My problem is independent of which Linux I'm using. Not sure if Windows has the same hang-up.
My wifi neighborhood is very crowded, but I have signal strengths in the 60s and 70s and the
neighbors on the same channel are in the 30s or below.

It feels like inactivity somehow kicks the DNS off-line until I act like I'm just getting on-line again.
edit update: Trying 'ignore ipv6'

[josp]

Hi, I have the same problem, wlan disconnecting after appr. 10 minutes - BUT only in FireFox, not when i'm using Chrome...
I tried the command given in a previous tip, and the result is attached...

[josp]

Huh - no attachment? I'll try once more...How can I see that the attachment really IS uploaded??? Oh I see, unaccepted filename, sorry...Changed!

[Fellere]

I got it to work:

Type iwconfig and look at the output. You should see the name of your chip-set as well as the whether power management is off or on. If it doesn't say, it is probably off.

To turn off power management, go to /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf and you will see:

[connection]
wifi.powersave = 3
Change the 3 to a 2 and reboot.

Then run iwconfig and if it worked you should see Power Management:off.

Source: https://sites.google.com/site/easylinux ... eless-card

[hayderalani]

To solve the problem of wireless connection firstly, you should make sure that you are connected to the right wireless network. Secondly, disable the service. You can’t connect/disconnect unless you restart the service. Finally restart the service again and a better wireless connection should be achieved.