Unable to connect to Windows Ad-Hoc from 11.10


Answer: 1

12 hours ago

I am a newbie to Ubuntu, and loving it except for this AdHoc issue which has been bugging me for a month. I have found numerous posts on the issue with no real solutions, so let me be a bit more specific regarding the issue, and hopefully someone can help me out.

I have a Broadcom Driver on a Dell Inspiron and the Wifi works great. The AdHoc works on a parallel installation of Windows 7, so that should mean the card supports AdHoc. My friends laptop running 11.10 is able to connect to the network via Adhoc with no issues, hence the network is setup right. Of the many things i have tried so far, I got the ndiswrapper, tried all possible configurations (manual configuration) in network manager, even tried the wicd manager

The latest breakthrough was when I tried sudo iwconfig wlan0 mode ad-hoc

Error for wireless request "Set Mode" (8B06) :
    SET failed on device wlan0 ; Operation not supported.

so i tried iwconfig wlan0 and got

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=19 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

So the Mode is forced to Managed instead of Ad-Hoc

So, where do I go from here?

Additional Information:

The output for sudo lshw -C network is

       description: Wireless interface
       product: BCM4313 802.11b/g/n Wireless LAN Controller
       vendor: Broadcom Corporation
       physical id: 0
       bus info: [email protected]:03:00.0
       logical name: wlan0
       version: 01
       serial: 70:f1:a1:89:e7:1a
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=brcmsmac driverversion=3.0.0-17-generic firmware=N/A ip= latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:17 memory:f0500000-f0503fff
       description: Ethernet interface
       product: AR8152 v1.1 Fast Ethernet
       vendor: Atheros Communications
       physical id: 0
       bus info: [email protected]:04:00.0
       logical name: eth0
       version: c1
       serial: b8:ac:6f:65:e4:3e
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion= firmware=N/A latency=0 link=no multicast=yes port=twisted pair
       resources: irq:43 memory:f0400000-f043ffff ioport:2000(size=128)
Added by: Carolyne Moore

Answer: 2

17 hours ago

Create ad-hoc network in ubuntu using network manager and than check in ubuntu it self. whether its running fine. and then go to windows.

you can take help of

Why can't other machines connect to my ad-hoc wireless network?

Added by: Jewell Miller IV

Answer: 3

8 hours ago

I have upgraded to 12.04 Precise Pangolin and it is now working great. Haven't been able to spot the initial issue, but with this upgrade, it dosen't matter now.

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