14.04 Wireless Disconnecting/Reconnecting Every 60 Seconds

[swormuth]

No issues in 13.10. Did a fresh install of 14.04... Dell Inspiron N4010 laptop.

Exactly every 60 seconds, my wireless connection disconnects and immediately reconnects. I have a perfect connection for 60 seconds, then repeat. Over, and over, and over, and over.

Where should we start?

Thanks!

[squakie]

Let's start by finding out what wireless adapter/chipset you have. Do the following in a terminal window and post back the output:

lspci | grep Network

lsusb

ifconfig

iwconfig

[swormuth]

Thanks. I'll appreciate any help I can get on this. Here are the results.

lspci | grep Network

03:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)

lsusb

Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0c45:641d Microdia 1.3 MPixel Integrated Webcam
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

ifconfig

eth0 Link encap:Ethernet HWaddr f0:4d:a2:57:3e:77
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)

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:4660 errors:0 dropped:0 overruns:0 frame:0
TX packets:4660 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:485099 (485.0 KB) TX bytes:485099 (485.0 KB)

wlan0 Link encap:Ethernet HWaddr 1c:65:9d:85:c1:5f
inet addr:192.168.1.16 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: 2604:2000:2d82:d780:f8ea:4ed3:1efd:463g/64 Scope:Global
inet6 addr: 2604:2000:2d82:d780:1e65:9dff:fe85:c15f/64 Scope:Global
inet6 addr: fe80::1e65:9dff:fe85:c15f/64 Scope:Link
inet6 addr: 2604:2000:2d82:d780:988d:676d:859c:dc07/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9551 errors:0 dropped:0 overruns:0 frame:0
TX packets:7611 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9102661 (9.1 MB) TX bytes:1671443 (1.6 MB)

iwconfig

eth0 no wireless extensions.

lo no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"123-FAKE"
Mode:Managed Frequency:2.437 GHz Access Point: 28:C6:8E:23:A7:69
Bit Rate=72.2 Mb/s Tx-Power=19 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff
Link Quality=70/70 Signal level=-22 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:120 Missed beacon:0

I had no issues with 13.04 and 13.10. When I decided to fresh install 14.04 for the LTS version, I initially had an issue with having no wifi after sleep, but never did anything to fix that. I always do the updates when they come in, and this issue started 5/16/14. Before that date, just the sleep issue. This one makes the system unusable, but I'd like to fix both issues.

Thanks guru's...
Steven

[squakie]

In doing a little research, that appears to be amongst the problems some have encountered. This link seems to indicate a driver issue, which the last 2 posts seem to address. There was no reply from the OP after those 2 posts so I don't know if it worked or not.

[swormuth]

Well, doing some work on the office desktop and now that machine is doing it also with a wired connection. Wife's laptop is still running 13.10 on the same network without issue. Looks as if 14.04 is broken in a big way. Gonna try the HTPC in the bedroom later and see if that one has developed the issue as well. That is 14.04 wireless also, so if it does it, that would make it every 14.04 machine in the house having the issue with no problems on 13.10.

I'll post back in a couple hours.

[swormuth]

Ok, I'm puzzled.

I did an internet upgrade a few days ago (got faster speeds). Although I rebooted my router several times trying to fix this issue, I never rebooted the modem. After rebooting the modem on a whim, the problem cleared on both 14.04 machines. I'm puzzled because the 13.10 never needed a reboot, and was being used all day by my wife while the 14.04's were having the issue described???

Anyhow, I'll post back in a day or two and let you know if the issue returns. Weird.

On the side note, from the information above, can anyone tell me how to edit the .conf file of my wireless device to tell it not to sleep? I did this to the HTPC machine a while ago to fix the "no internet after sleep" symptom, but I can't remember what I did. I stumbled across the solution and can't find it again. With 14.04, my laptop has developed the same issue, and my wife's is identical... If I can get these threee machines to maintain wifi after sleeping, my life will be normal again.

Thanks!!!

[squakie]

Wish I could have been of more help. I don't know about the sleep issue (do you mean hibernate?) so I'll leave that to someone who does know.

Glad you at least got it working.

[Bucky Ball]

On the side note, from the information above, can anyone tell me how to edit the .conf file of my wireless device to tell it not to sleep? I did this to the HTPC machine a while ago to fix the "no internet after sleep" symptom, but I can't remember what I did. I stumbled across the solution and can't find it again. With 14.04, my laptop has developed the same issue, and my wife's is identical... If I can get these threee machines to maintain wifi after sleeping, my life will be normal again.

You might have more luck asking this in a new thread with a descriptive title.

[swormuth]

No worries. Thanks for trying to help. Sometimes the puzzle just puzzles itself out. The issue seems resolved, so if anyone else has this issue, a modem reboot is needed along with the router. No clue why that worked, but anywho...