Long time ubuntu user here. I usually use www.ubuntuforums.org but i thought I would something here. Anyway i recently upgraded to Ubuntu 12.04 with my Lenovo x61s laptop. Immediately after starting up, i noticed that the wireless connection drops and forgets the wireless keys about every 10 to 15 seconds. So every time i finish entering the wireless password, i can wait 10 seconds, and I get booted from the network and am prompted again for the pass phrase. Obviously there is a problem here, and I have noticed a lot of other questions on this forum about this. The only real answer I saw was doing:
sudo iwconfig wlan0 power off
But when I do that I get this error:
Error for wireless request "Set Power Management" (8B2C) : SET failed on device wlan0 ; operation not supported.
And i know my wireless card is using wlan0 for the connection.
Please any help is greatly appreciated!
** EDIT **
I just restarted the new install for the first time, and now I am on a different wifi network, and the wireless connection seems to be working. Will update with any changes.
** UPDATE **
So last night I shut down the computer and brought it home. The wireless performed flawlessly on my home network. I brought it back to the office, where i had the original problems, and still i get kicked off the wireless network every 15 seconds... It must be a problem with the network instead of with Ubuntu. Thanks for the help everyone! but I think my Ubuntu installation is working correctly!
Here is the output from
lspci -vv for the wireless controller:
03:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02) Subsystem: Intel Corporation Device 1010 Physical Slot: 3 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 46 Region 0: Memory at dfcff000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: iwl3945 Kernel modules: iwl3945