Wireless dies?

[tek_heretik]

I ran a cable through the attic and haven't had a problem since. So, problem either solved or abandoned.

Funny you should say that, personally, I don't like wifi, my phone comes with bandwidth that I barely use anyway and I don't have a laptop so...wired is fine by me.

[GreyGeek]

Ah, the fastest and most stable connection of all.

[Jeremy_Ray]

I ran a cable through the attic and haven't had a problem since. So, problem either solved or abandoned.

[GreyGeek]

Amazon has some PCI wirless cards, with prices ranging from $5 to $75. Make sure you have bg or bgn.

http://www.amazon.com/TP-Link-TL-WN9.../ref=pd_cp_e_0

[Jeremy_Ray]

:shock:

Plan C, what device are you guys using for wireless? What definitely works with 12.04?

Sure I had wireless working in 11.10, but not SATA 3, and the old video drivers weren't good either.

[GreyGeek]

The wireless drivers are kernel modules. You can downgrade your kernel.
Currently, in my 12.04 install, I show:

/lib/modules/3.2.0-23-generic/kernel/drivers/net/wireless/rt2x00/rt2x00lib.ko/lib/modules/3.2.0-23-generic/kernel/drivers/net/wireless/rt2x00/rt2x00pci.ko
/lib/modules/3.2.0-23-generic/kernel/drivers/net/wireless/rt2x00/rt2x00usb.ko

Here is an example of how to do it:
http://askubuntu.com/questions/71139...ernel-on-11-10

All of the ppa kernels are here:
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Pick the one you were using before and download the image and header files for your architecture (i386 or amd64).

[Jeremy_Ray]

Let's talk about downgrading drivers. I've tried changing max_nullfunc_tries and max_probe_tries to no avail.

[GreyGeek]

I'm not sure, but it may be better. It only died on me twice last night, whereas the night before it was every 5-10 minutes. But it died right off the bat this morning.

edit - back to dying every 5-10 minutes this morning.

Should I increase the modprobe.conf values? How much should I increase them by?

options mac80211 max_nullfunc_tries=60 max_probe_tries=60 probe_wait_ms=3600000

The "probe_wait_ms" is set for one hour, which is insanely high (default is 500ms) but you know it won't disconnect on waiting, so I would increase "max_probe_tries" to something like 120. If that doesn't help then restore it to 60 and increase "max_nullfunc" to 120. If that doesn't help then make them both 120. If that doesn't work then I'd double them again.

If that doesn't work then I'd downgrade the wifi driver to that in the previous version.

[Jeremy_Ray]

Couple other ideas, is it possible to go back to the 11.10 driver? If not, what USB antenna will definitely definitely work with 12.04?

[Jeremy_Ray]

Sorry to hear that. I agree that the problem is with 12.04. Probably the driver for your USB wireless chip.

There are several param's. Have you tried adjusting the values to see if there are changes in the up time?

I'm not sure, but it may be better. It only died on me twice last night, whereas the night before it was every 5-10 minutes. But it died right off the bat this morning.

edit - back to dying every 5-10 minutes this morning.

Should I increase the modprobe.conf values? How much should I increase them by?

[GreyGeek]

Wireless died after 45 minutes with Greygeek's changes.

Sorry to hear that. I agree that the problem is with 12.04. Probably the driver for your USB wireless chip.

There are several param's. Have you tried adjusting the values to see if there are changes in the up time?

[Jeremy_Ray]

Sometimes Wifi routers, boxes, cable 'modems', whatever, die, process of elimination helps (It may not be your motherboard or OS). I have had several broadband 'modems' die on me, one phone line, the other cable, cheap junk made in China not meant to last. The components on the breadboards (circuit boards, whatever) suck, some companies allow the Chinese to put in the cheapest garbage they can find. I have had some electronics (TVs, etc) die right when the warranty period was up, proving the garbage components are only meant to last only so long, needless to say, those same scammer companies don't get my gadget dollar anymore.

I've been through a couple dsl modems. The last one died a month ago, so the current one is only a couple months old. Usually they go 2-3 years.

This problem isn't showing up on two other computers, and the laptop goes through the wireless router too. The problem didn't exist on this desktop until 12.04 was installed. Seems like 12.04 must be the problem.

[tek_heretik]

Sometimes Wifi routers, boxes, cable 'modems', whatever, die, process of elimination helps (It may not be your motherboard or OS). I have had several broadband 'modems' die on me, one phone line, the other cable, cheap junk made in China not meant to last. The components on the breadboards (circuit boards, whatever) suck, some companies allow the Chinese to put in the cheapest garbage they can find. I have had some electronics (TVs, etc) die right when the warranty period was up, proving the garbage components are only meant to last only so long, needless to say, those same scammer companies don't get my gadget dollar anymore.

[Jeremy_Ray]

Wireless died after 45 minutes with Greygeek's changes.

[Jeremy_Ray]

Can you access the wireless if you boot from the Live CD of 12.04?

Yes, but after a while it craps out same as my install.

GreyGeek - O.K., modprobe.conf has been created and the computer rebooted. I'll let you know what happens.