I have same problem: [EMAIL PROTECTED]:~$ sudo iwconfig wlan0 mode ad-hoc Error for wireless request "Set Mode" (8B06) : SET failed on device wlan0 ; Device or resource busy.
[EMAIL PROTECTED]:~$ uname -a Linux jeffersonlaptop 2.6.24-17-rt #1 SMP PREEMPT RT Thu May 1 16:23:33 UTC 2008 i686 GNU/Linux [EMAIL PROTECTED]:~$ dmesg | grep iwl [ 48.377513] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.0 [ 48.377523] iwl3945: Copyright(c) 2003-2007 Intel Corporation [ 48.590601] iwl3945: Detected Intel PRO/Wireless 3945ABG Network Connection [ 51.916901] iwl3945: Tunable channels: 13 802.11bg, 23 802.11a channels [ 51.919390] wmaster0: Selected rate control algorithm 'iwl-3945-rs' -- iwl3945 doesn't support ad-hoc networks https://bugs.launchpad.net/bugs/201597 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs