Wireless connection drops after few minutes

jeffpr · 07-05-2005, 02:36 PM

I have my wireless card working ok, the only problem is that when I connect to the VPN at my school using cisco software, the connection lasts for a few minutes and then drops. When I type
$route it shows me the kernel routing table and the wireless interface wlan0 is still there, however it pauses for about 20 seconds before it loads the last part of the table, namely the section with the gateway address for the broadcast.

After it drops I can't ping the gateway which means something weird is happening. In the dmesg log it gives this error at the end:

Code:

Cisco Systems VPN Client Version 4.6.00 (0045) kernel module loaded
mtrr: no more MTRRs available
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_write 0: semaphore is not ready for register 0x32
Badness in local_bh_enable at kernel/softirq.c:140
 [<c011f9b9>] local_bh_enable+0x69/0x80
 [<e043ad8d>] handle_vpnup+0x5d/0x170 [cisco_ipsec]
 [<e043aac0>] interceptor_ioctl+0x0/0xe0 [cisco_ipsec]
 [<e043ab05>] interceptor_ioctl+0x45/0xe0 [cisco_ipsec]
 [<c02ab2e6>] dev_ifsioc+0x116/0x380
 [<c02ab65d>] dev_ioctl+0x10d/0x290
 [<c02a0630>] sock_ioctl+0x0/0x260
 [<c0169f2f>] do_ioctl+0x1f/0x70
 [<c016a0bc>] vfs_ioctl+0x5c/0x1f0
 [<c016a2c2>] sys_ioctl+0x72/0x90
 [<c0102f05>] syscall_call+0x7/0xb
Badness in local_bh_enable at kernel/softirq.c:140
 [<c011f9b9>] local_bh_enable+0x69/0x80
 [<c02a9135>] dev_remove_pack+0x5/0x10
 [<e043adc9>] handle_vpnup+0x99/0x170 [cisco_ipsec]
 [<e043aac0>] interceptor_ioctl+0x0/0xe0 [cisco_ipsec]
 [<e043ab05>] interceptor_ioctl+0x45/0xe0 [cisco_ipsec]
 [<c02ab2e6>] dev_ifsioc+0x116/0x380
 [<c02ab65d>] dev_ioctl+0x10d/0x290
 [<c02a0630>] sock_ioctl+0x0/0x260
 [<c0169f2f>] do_ioctl+0x1f/0x70
 [<c016a0bc>] vfs_ioctl+0x5c/0x1f0
 [<c016a2c2>] sys_ioctl+0x72/0x90
 [<c0102f05>] syscall_call+0x7/0xb
wlan0 (WE) : Wireless Event too big (279)

I am using fedora core 4 and to get the wireless up I type $ dhcpcd wlan0 because I found $dhclient wlan0 wasn't working too well, though I am not even close to an expert because I don't know what the difference is between these programs. Thanks for the help.

Jeffpr

Hangdog42 · 07-10-2005, 07:59 AM

I'm going to guess from your post that you are using ndiswrapper as your card driver. The Wireless Event too big error has cropped up in discussions there and seems to be limited to users of the GWL-510 card on Fedora Core 4, although that could just be the people complaining. I saw this error earlier from an Unbuntu user and that was solved by dropping back to an older version of ndiswrapper (1.0).

If you're not using ndiswrapper, then it might help if you post the make/model/driver you are using.

jeffpr · 07-10-2005, 08:30 AM

Hi thanks for your response. You are right I'm using ndiswrapper ver 1.2 so I might try to drop back to 1.0 and see if that works. The card I'm using is Dell 1450 wireless card with bcmwl5a.inf driver.

Regards,
Jeffpr