Hostap interface wlan0 goes down once, then it works

Jouni Malinen jkmaline at
Fri Apr 21 10:39:17 EDT 2006

On Fri, Apr 21, 2006 at 01:28:01PM +0200, Gianni Costanzi wrote:

> I'm using Hostap 0.4.7 with a Netgear MA401 Wireless Card (with the latest
> firmware) on a 2.6.15 kernel and everything works perfectly, apart from a
> problem that happens the first time I put the card in master mode: it works
> perfectly, but after few minutes (less than five, usually) the access point
> deauthenticates all the stations because the wlan0 interface goes down. If I
> set up again wlan0, everything works without other similar problems (for
> hours). I do not think that it is a problem related to hostap, but I'm
> asking this to you all just in case that someone has experienced the same
> problem and perhaps has solved it.

Do you happen to be running a DHCP client on the interface? Couple of
minutes could be a timeout for DHCP client and some of the
implementations are setting the interface down if they fail to get an IP

Jouni Malinen                                            PGP id EFC895FA

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