disconnect from network at random

[snappwrench]

Been working on this for a while now and hopefully getting to a close but here it goes. I'm being disconnected from my router at random and through all my searching i think i'm pretty close to fixing it but need a little help. I currently use the rt2500 driver for my wireless adapter and in lsmod it shows that i'm also using rt2x00 with it which i think is right? Anyway i also figured out that the power management was on so i turned it off and to no prevail. this is what it shows in dmesg:

usb 1-4: USB disconnect, address 4
No probe response from AP b0:e7:54:c3:ac:91 after 500ms, disconnecting.
[16607.671372] cfg80211: All devices are disconnected, going to restore regulatory settings
[16607.671376] cfg80211: Restoring regulatory settings
[16607.671378] cfg80211: Calling CRDA to update world regulatory domain
[16607.673630] cfg80211: World regulatory domain updated:
[16607.673632] (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[16607.673634] (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[16607.673635] (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[16607.673637] (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[16607.673638] (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[16607.673640] (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Not sure what deal is, driver conflict maybe? Any help would be great, thank you. If more info is needed then please let me know.

[SecretCode]

I don't have that wifi device, but there are quite a few web hits for "USB disconnect no probe response". If disabling power management doesn't do the trick, you might want to try blacklisting modules as described here: [SOLVED] DWA-140/Wireless USB network adapter - Ubuntu Forums

Or else drop Network Manager and install wicd.

If still not working, post the relevant line from lsusb showing what model it is.

[snappwrench]

Thank you for your response. I've been working on this for a long time and it's driving me crazy but i'll try the above mentioned and let you know how it goes. I blacklisted some of the modules already so we'll see how that goes. Thanks again.

[snappwrench]

also this is the usb device i am using - Linksys WUSB54G v4 802.11g Adapter [Ralink RT2500USB]

[snappwrench]

Ok well i haven't been disconnected yet but i also found that the power management isn't staying off after i reboot. I've looked on the forums and tried creating a wireless file in /etc/pm/power.d with the text given and it doesn't work so i am also trying to figure out how to keep the power off as well. I blacklisted the modules i shouldn't need but they still show up in lsmod so i'm not sure if they are actually blacklisted or not. Maybe i need to add them to the /etc/modprobe.d/blacklist-oss.conf?

[GreyGeek]

There isn't much to set in the rt2500usb.ko kernel module that drives the device:

$ modinfo /lib/modules/3.2.0-16-generic/kernel/drivers/net/wireless/rt2x00/rt2500usb.ko
filename:       /lib/modules/3.2.0-16-generic/kernel/drivers/net/wireless/rt2x00/rt2500usb.ko
license:        GPL
description:    Ralink RT2500 USB Wireless LAN driver.
version:        2.3.0
author:         http://rt2x00.serialmonkey.com
srcversion:     6C76F7D6EB3FF3009229AC7
alias:          usb:v5A57p0260d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0F88p3012d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0EB0p9020d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0769p11F3d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v114Bp0110d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0707pEE13d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0681p3C06d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v079Bp004Bd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v148Fp9020d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v148Fp2570d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v148Fp1706d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0DB0p6869d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0DB0p6865d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0DB0p6861d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0411p0097d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0411p008Bd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0411p0067d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0411p0066d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0411p005Ed*dc*dsc*dp*ic*isc*ip*
alias:          usb:v06F8pE000d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1044p8007d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1044p8001d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v2001p3C00d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v14B2p3C02d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v13B1p001Ad*dc*dsc*dp*ic*isc*ip*
alias:          usb:v13B1p0011d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v13B1p000Dd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v050Dp7051d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v050Dp7050d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0B05p1707d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0B05p1706d*dc*dsc*dp*ic*isc*ip*
depends:        rt2x00lib,rt2x00usb
intree:         Y
vermagic:       3.2.0-16-generic SMP mod_unload modversions 
parm:           nohwcrypt:Disable hardware encryption. (bool)
jerry@jerry-Aspire-7739:~$

The only parm is "nohwcrypt", which can be set to 1 or 0. It's probably 0 by default. Setting it to 1 as an experiment might show something interesting.
You can set it to 0 or 1 by editing

/etc/modprobe.d/options

and including a line like this:

options nohwcrypt=0

[snappwrench]

is there another way to try that? I don't see the options file in that location and when i run it in konsole it gives me this:

Error: "/var/tmp/kdecache-wrench" is owned by uid 1000 instead of uid 0.
Error: "/tmp/kde-wrench" is owned by uid 1000 instead of uid 0.
Error: "/tmp/ksocket-wrench" is owned by uid 1000 instead of uid 0.
Bus:pen: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon
kate(2828)/kdecore (services) KMimeTypeFactory:arseMagic: Now parsing "/usr/share/mime/magic"
kate(2828)/kdecore (services) KMimeTypeFactory:arseMagic: Now parsing "/home/wrench/.local/share/mime/magic"

It just opens a blank window in kate

[oshunluvr]

/etc/modprobe.d/options was removed beginning with 10.10 I believe. The "new" way is /etc/modprobe.d/somefoo.conf. For example I use port bonding. In version 10.04 I had my bonding options in /etc/modprobe.d/options. Now in 11.04, my binding options are in /etc/modprobe.d/bonding.conf. You can also use /etc/modprobe.conf for options, but that file will be ignored sometime in a future version.

[snappwrench]

lol, not seeing any of that either. Everything in my modprobe.d folder is all blacklist.conf files so i'm a little confused. Maybe in a different dir? Isn't there a conf file for iwconfig other than making temp changes through konsole? Sorry for the lack of knowledge here but i've been on this for a long time so my brain is getting fried. I've tried wicd before and it made things worst but i know more about it now so worst case i can try that again but would rather figure this out for future reference. thank you for your help.

[oshunluvr]

You have to create the file you need.

[GreyGeek]

/etc/modprobe.d/options was removed beginning with 10.10 I believe. The "new" way is /etc/modprobe.d/somefoo.conf. For example I use port bonding. In version 10.04 I had my bonding options in /etc/modprobe.d/options. Now in 11.04, my binding options are in /etc/modprobe.d/bonding.conf. You can also use /etc/modprobe.conf for options, but that file will be ignored sometime in a future version.

Thanks for the heads up, oshunlulvr! I was using 10.04 before I installed 12.04 on this Acer. I wasn't aware that the protocol had changed.

[oshunluvr]

I had to look long and hard to find out how to set up my bonding options after the upgrade from 10.04 to 11.04...

[GreyGeek]

I had to look long and hard to find out how to set up my bonding options after the upgrade from 10.04 to 11.04...

I've been using Precise (with KNetworkManager) for over a month without network problems, which is a new record for me. I usually switch to wicd within days after I install a new version. I have noticed, however, that on occasions, since upgrading to FireFox 11.0 a few days ago, that my Internet connection seems to pause, which it never did before. The connection doesn't appear broken when one clicks on the KNetworkManager Icon and displays the connection data, byt the packet rate has flat-lined and FF11.0 is not responsive. When I open a Konsole and ping Google I get an immediate response. The pauses are not web site dependent. It can occure on any website at any time. I will let FireFox ride for a while on the hopes that an update will resolve the situation. At least it is not nearly as bad as the similar problem with the old KFN site.

[snappwrench]

well i feel stupid lol, tells you how long i've been at it. Got the file created so we'll see, still haven't figured out how to keep the power management off though. I appreciate all your input i will let you know how it goes. Thanks

[snappwrench]

still getting cut off so i guess i'll try wicd, but i would like to get this figured out. Kind of a good learning experience no matter what so gonna keep at it but i will try wicd and see if that helps.