frequent signal dropping when using mobile broadband

[radith samaratunga]

i use ubuntu 12.04 beta 2 on my acer aspire 4736Z.when using mobile broadband(3G USB dongle) frequent signal dropping occurs. this doesn't happen when i use the same 3g connection in windows 7 this doesn't happen.
further after each and every restart i have to activate mobile broadband in network settings.
thanks!!!

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/978163/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Daniel Letzeisen (dtl131)]

Please run the following command to gather network information:
apport-collect 978163

[Launchpad Janitor (janitor)]

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]