I wonder if that problem is actually a (single) problem of DHCP.
- I am using ndiswrapper (Broadcom Chipset, bcm43xx native driver disabled)
- NetworkManager cannot establish a connection at all (that is maybe a
different problem. I uninstalled it completely)
- a network configuration was established via /etc/network/interfaces and
wpa_supplicant; ifdown/ifup commands were registered in rc.local (without any
effect!)
- After Ubuntu has started up in many cases a connection to the access point
has not been established; I need to set it up manually (first "ifdown eth1" in
order to close an existing connection, then ifup eth1)
- After connection has been corrupted (i. e. standby mode) I have to retry
disconnecting/connection several times (my wlan device eth1 is not displayed in
the ifconfig printout anymore after a wakeup from standby). The DHCP client
first seemed to be the problem (did not get an IP address), but even after
static IP configuration the problem has NOT been solved. However, connection on
bootup is started correctly with a static IP.
- the dmesg printout often contains the error message "eth1: no IPv6 routers
present". I tried to disable the ipv6 module - no effect
- I think I could reduce the number of disconnecting/connection retrials needed
to connect by setting the ap_scan variable in wpa_supplicant.conf to 2
(formerly 1) but I don't know
I don't know if my problem is really the same problem as described
above, but perhaps I can help to solve that bug on Ubuntu. Please
contact me if you need further information!
Regards,
Rubeosis
/etc/network/interfaces
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
auto eth1
iface eth1 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
# iface eth1 inet static
# address 192.168.2.99
# netmask 255.255.255.0
# gateway 192.168.2.1
# wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
# auto eth1
# auto eth2
# iface eth2 inet dhcp
# auto ath0
# iface ath0 inet dhcp
# auto wlan0
# iface wlan0 inet dhcp
/etc/wpa_supplicant/wpa_supplicant.conf
ap_scan=2
network={
ssid="XXX"
scan_ssid=1
proto=WPA
key_mgmt=WPA-PSK
pairwise=TKIP
psk="XXX"
}
--
Wireless network interface (ipw2200) does not have IP address after boot
https://bugs.launchpad.net/bugs/34505
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