Wireless fails after 1 minute

Question

MSI Wind with rtl8187se (name of module and wireless hardware) and using wpa-psk.  New installation of arch.  Wireless works fine for 1-2 minutes then fails (can't get any response pinging google or pointing elinks to google, etc).
What I'm doing:
bash-4.0# ifconfig wlan0 up
bash-4.0# iwconfig wlan0 essid PrivateNetwork
bash-4.0# wpa_supplicant -B -Dwext -i wlan0 -c /etc/wpa_supplicant.conf
bash-4.0# dhcpcd wlan0
dhcpcd: version 5.0.6 starting
dhcpcd: wlan0: broadcasting for a lease
dhcpcd: wlan0: offered 192.168.2.2 from 192.168.2.1
dhcpcd: wlan0: acknowledged 192.168.2.2 from 192.168.2.1
dhcpcd: wlan0: checking for 192.168.2.2
dhcpcd: wlan0: leased 192.168.2.2 for infinity
dhcpcd: forking to background
If I pkill dhcpcd and start it again, still no connection.   
If I kill dhcpcd, wpa_supplicant, and do "ifconfig wlan0 down", and start over, connection comes back for  1 minute & quits again.
I tried "iwconfig wlan0 rate 11M fixed"  (to lower bit-rate from 54) but "fixed" seems not to work-- bit-rate creeps back up to 54 in 30 seconds.
And something weird with dhcpcd:
bash-4.0# dhcpcd -k
dhcpcd: dhcpcd not running
bash-4.0# dhcpcd wlan0
dhcpcd: dhcpcd already running on pid 2100 (/var/run/dhcpcd-wlan0.pid)
Please can someone help me understand what's going on?  I've heard of problems with rtl8187se module but apparently its working for some people.

Answer 1

djszapi wrote:Did you try to connect with other applications, like wicd or network manager?
No, I haven't been able install them yet, but thanks.
neddie_seagoon wrote:have you tried to directly access any sites by IP to see if the issue is somehow related to name resolution?
I can ping 74.125.45.100 with no drops for the 1st minute or so, then after that 100% packet loss. 
Just for info:
bash-4.0# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 0.0.0.0 255.255.255.0 U 302 0 0 wlan0
0.0.0.0 192.168.2.1 0.0.0.0 UG 302 0 0 wlan0
bash-4.0# route add default gw 192.168.2.1
bash-4.0# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 0.0.0.0 255.255.255.0 U 302 0 0 wlan0
0.0.0.0 192.168.2.1 0.0.0.0 UG 0 0 0 wlan0
0.0.0.0 192.168.2.1 0.0.0.0 UG 302 0 0 wlan0
Does that first table look normal?  Thanks for your help very much!
stevea wrote:I changed my script was to pause 10 seconds after the wpa_supplicant and before dhcp.
Thankyou, yes, I'm not even running a script yet, just running ifconfig/iwconfig/wpa_supplicant/dhcpcd on the command line.  I've tried waiting a while before starting dhcpcd.  Doesn't seem to make a difference.
Last edited by jaf777 (2009-09-05 15:57:35)