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I have a sony vaio vpceb24en laptop, I'm using dual boot system with windows 7 and ubuntu. Firstly I installed ubuntu 10.04 LTS then upgraded to 12.04 and 12.04.1 afterwards. I have mts mblaze dongle. I have set up the mts connection profile under the mobile broadband.

My problem is that sometimes my connection is easily made and I use it, sometimes, it never connects, so I have to restart my system, then it connects to internet sometimes.

Right now it's not connecting even I restarted my system many times, just it shows trying to connect icon once, then never tries to connect. while in windows it's working fine.

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