Hi all I would reopen this bugreport and move it to kernel/firmware category with the following additional information and my experiences I describe below.
The above posted part of syslog with the error message "Incompatible driver and firmware versions" is a kernel message and has nothing to do with network-manager which is a userland utility that builds up connections through the network device drivers that the kernel has already loaded. So this bug is related to the kernel. Here is my personal experience: I was using Kubuntu Natty x64 with a Sierra USB AirCard 306 and it worked without hacking, just plugged it and it connected through the network-manager. The kernel version I used was 2.6.38-11-generic. Yesterday I have upgraded my Kubuntu to Oneiric and the same problem reappeared described in this bugreport. The kernel version I used was 3.0.0-12-generic. I have rebooted my Oneiric with the previous Natty kernel (see above the version) and now it loads the firmware without error message. Additional information: I have the same problem with Debian Squeeze 2.6.32-5-686 and it connects through pppd instead of network-manager. At this point I have not tried to connect to my ISP as the SIM card inserted needs top-up but I have my main SIM card which is monthly-paid in the old 3g modem that I'm using actually to write this comment. After submitting I replace the SIM cards and the dongles and I will return with more info (syslog, lsmod, etc). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/709970 Title: Sierra 301 USB mobile almost nevers connects To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/709970/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
