Ubuntu wifi problems

[tjh]

Hi,

I have a couple of jogglers here both running BuZz's Ubuntu 14.04.2 LTS, and neither lasts more than a couple of days without the wifi connection going down. /var/log/syslog shows:

Code: Select all

Jun 26 03:28:30 joggler NetworkManager[989]: <info> (wlan0): roamed from BSSID BC:EE:7B:6F:E8:40 (MyNetwork) to (none) ((none))
Jun 26 03:28:30 joggler NetworkManager[989]: <info> (wlan0): supplicant interface state: completed -> disconnected

Several other devices on the network, btw, none with similar issues.

Googling this brings up quite a lot of ubuntu-related hits, with all kinds of incomprehensible (to me) voodoo being recommended.

Is this something other people here have experienced, and (hopefully) solved?

[pete]

The stock USB wireless stick gets pretty hot. You might be able to put a tiny heatsink on it.

[tjh]

Is that actually known to cause this kind of problem?

[hawsey]

Are you booting from a usb hub or a stick straight in the side of the joggler ?
Also have you set the thermal psv =80 thing ?

[tjh]

Are you booting from a usb hub or a stick straight in the side of the joggler ?

From a hub (D-Link DUB-H4) - I have a DAC attached as well.

Also have you set the thermal psv =80 thing ?

No, but I thought that was set in BuZz's distro?

thanks,
timh

[hawsey]

No it's not pre set , but very easy to do and reaps big rewards for little effort even if it doesn't cure the problem .
http://jwills.co.uk/joggler-xubuntu/instructions/
Try it and see if it sorts it for you
Good luck

[tjh]

Thanks - I've just rebooted with the edited grub.cfg, so now to wait and see...
I really thought I'd read through BuZz's page before, without noticing that bit! He has totally changed the layout since I last looked, though, so possibly a bit of editing has taken place too.

Will report back.

[hawsey]

Yeah I just noticed BuZz's revamped site too looking good .
Some people are taking out the wireless card, booting the os off the internal port it was in and putting in a new bought one in the side port .
I find the stock wireless card pretty iffy although others have no issues .
My Joggler in the kitchen used to drop out when the microwave was switched on ( it is on top of it tho)
Might be the microwave to blame mind , wondered why the cat had grown a second head ......

[tjh]

Well, the wifi lasted about 30 hours this time, so nothing seems to have changed

Oh well - thanks for the suggestion. Back to the drawing board..

[hawsey]

Maybe try a new wireless dongle
Edimax EW-7811UN 150Mbps Wireless Nano USB Adapter https://www.amazon.co.uk/dp/B003MTTJOY/ ... KvbCPD0C60

[tjh]

Wow - I didn't realise they'd got so small! That's tempting.

Naive question: would that work plugged into the hub? And when you commented earlier about running the OS off the internal USB port, do you mean there's enough internal space (and ventilation) for a memory stick?

thanks again.

[Error]

yes and yes,

I've plugged in a hub into the internal port. I cut the plug of original wifi card of and soldered longer wire to it, it's now plugged in in the hub and working fine.
My other Joggler runs OS via hub-in-internal-port..

[tjh]

Thanks. I've ordered one of those cute Edimax dongles, so will no doubt be back with further problems. Sorry, issues .