Ubuntu

Wifi card not connecting ubuntu 14.04? Why?

Asked by Iain Howard

Recently upgraded my Dell 1720 Laptop from Ubuntu 12.04 to 14.04

Results: Flaky wifi disconnects after being on standby and will not reconnect.

Eventually after several reboots it connects or suggested command on the internet on how to resolve this.

The card is a BCM4321 wireless card.
I have been through every article and forum post looking for an answer.

I cannot connect to my work's public wifi. Can connect at home but only in certain curcumstances like if the plugs in.

Tried various scripts to kick it into life after resume. Tried re-installing drivers. NOTHING.

Please can someone suggest what this could be and is there an actual answerable fix?

Tried all these:
https://gsuartana.wordpress.com/2014/06/26/how-to-fix-unstable-wifi-connection-after-14-04-upgrade/
http://ubuntuforums.org/showthread.php?t=2220294
http://zeroset.mnim.org/2014/04/22/unstable-wifi-connection-on-ubuntu-14-04-trusty-tahr-ctrl-event-disconnected-reason4-locally_generated1/

To no avail. Any more answers on this greatly appreciated.

Iain

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actionparsnip (andrew-woodhead666) said : 		#1

Did you reboot your router?

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Iain Howard (iainje) said : 		#2

This is not a router issue. I can connect with ethernet cable to router no problem. I just need wifi to work.

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Iain Howard (iainje) said : 		#3

I cannot reboot work routers anyway.

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Iain Howard (iainje) said : 		#4

Also tried this:

http://askubuntu.com/questions/368671/ubuntu-13-10-wifi-not-re-connecting-after-suspend/368836#368836

Still not working

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Iain Howard (iainje) said : 		#5

I have even upgraded the kernel from 3.13 to 3.16 & 3.18.

This does not fix issue but only prevent's me from logging in!

When I login a black screen appears and it returns back to the login.

Iain

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