On Thu, 2010-09-09 at 23:07 -0700, anderson.fang at gmail.com wrote: > Hi all, > > I met a weird connection problem while using WiMAX service with Intel > 6250 under Ubuntu. > > Suppose my laptop is connected to WiMAX successfully while the signal > strength is better than 'Fair', and then I move an area with 'Poor' > link > status, the connection will be dropped as expected: > -------- > [2010/09/08 14:05:34] MESSAGE SYSTEM STATE UPDATE ARRIVED > System State: Ready > Connect Progress Info: Not Applicable > SW Radio: On > HW Radio: On > State Reason: Disconnect - Drop > -------- > > But then I go back where I initialized the connection, I cannot > connect > to the same NSP anymore even the scanned result is 'Good': > -------- > Network found. > NSP : XXXXXX > ID : xxxx > Signal : Good > RSSI : -73 dBm > CINR : 18 dB > Network Type: Home Network > Activated > -------- > > wimax_monitor always shows "Fail to Connect - EAP Auth" connection > error: > -------- > [2010/09/08 14:20:32] MESSAGE DEVICE STATUS UPDATE ARRIVED > Device Status: Connecting > Connection Progress: EAP Auth (Device) > [2010/09/08 14:20:52] MESSAGE SYSTEM STATE UPDATE ARRIVED > System State: Ready > Connect Progress Info: Not Applicable > SW Radio: On > HW Radio: On > State Reason: Fail to Connect - EAP Aut Weird -- I am wondering if the firmware (or the daemon) is getting stuck and remembering only one of the 'poor connectivity' BSs. Can you try resettting the card and scanning again? $ wimaxll -i wmx0 reset [give it a few secs] $ wimax scan $ wimax connect network XXX If this works, then it serves as a workaround and would prove that somehow it is still trying to connect to a poor connectivity network. If it doesn't, it might means something else. > > However the scenario does not happen under Windows 7. I can connect to > the same NSP after my connection is dropped. > > OS: Ubuntu 10.04 > Device: Intel(R) Centrino(R) Advanced-N + WiMAX 6250 > Kernel: 2.6.32-24-generic > wimaxd: 1.5 > wimax-tools: 1.4.3 > Driver: obtained from > git://git.kernel.org/pub/scm/linux/kernel/git/inaky/compat-wimax.git driver version should not affect, but compat-wimax is not being maintained up to the tree as of now. > The steps I connect to WiMAX NSP: > * # compat-wimax/load.sh > * # wimaxd -b > * # wimaxcu scan > * # wimaxcu connect network NSP > > Does anyone have the same problem or the solution of this? > > Thanks, > Anderson Fang
