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We have 4 Lenovo E130 laptops in our company, all running Ubuntu. One runs on Ubuntu 12.04: it had initial wifi connectivity problems but these stopped and it now connects fine (no cause identified). The others run 13.04 and have not been able to connect to WiFi unless I am directly beside the router and even then it gives only 2 out of 4 bars of signal strength. All other devices (Lenovo Desktops running Ubuntu, iMac, tablets and Smartphones, some using Windows) are able to connect fine. We upgraded one laptop to 13.10 but the connectivity problem persists: weak signal, continuously asking to re-enter the password, not connecting. It is becoming increasingly problematic for our working needs. I would be very grateful if anyone can provide assistance in terms that a simple-minded user like myself can understand and implement. Many thanks indeed!

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Have you tried using an LTS? I've had inconsistent issues with some of the rolling releases that were fixed in an LTS. Also are you checking to see if the Wifi is complaining at all in /var/log/syslog? Could be an incompatible wireless driver. –  Cole Busby Mar 13 '14 at 17:14
As Cole says, this is likely a problem with the driver included in that release. It might be worthy to try Ubuntu 14.04 on one of those E130; one month away from the final release it should be fairly stable by now. –  Luís de Sousa Mar 13 '14 at 17:45
Thanks for both your comments. Forgive the ignorance, but what is an LTS? And, where can I see whether wifi is complaining? I will try installing 14.04 on one of them. Would downgrading to 12.04 make any sense? Many thanks! –  user257925 Mar 17 '14 at 10:41

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