Gentoo Archives: gentoo-user

From: Mick <michaelkintzios@×××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] WiFi adaptor playing up
Date: Mon, 29 Jan 2007 20:53:05
Message-Id: 200701292044.02582.michaelkintzios@gmail.com
1 My only consolation is that this fault is not intermittent. :-(
2
3 Here's what happened. I emerged a different (to my tried & tested rt2x00-9999
4 wireless driver). Then I uninstalled rt2x00-9999, but I couldn't get the new
5 driver to work. So, I unmerged it, remerged rt2x00-9999 (this is a CVS
6 package) and I have not been able to make it work ever since. I even
7 recompiled the kernel in hope of getting it to work, but I can't get it to
8 detect any Access Points:
9 =====================================================
10 # /etc/init.d/net.wlan0 restart
11 * Starting wlan0
12 * Loading networking modules for wlan0
13 * modules: apipa arping ccwgroup macchanger macnet rename ifplugd
14 iwconfig essidnet iptunnel iproute2 pppd system dhcpcd ip6to4
15 * ifplugd provides plug
16 * iwconfig provides wireless
17 * iproute2 provides interface
18 * pppd provides ppp
19 * dhcpcd provides dhcp
20 * Configuring wlan0 for MAC address 00:11:50:18:55:3F ... [ ok ]
21 * ifplugd does not work on wireless interfaces
22 * Configuring wireless network for wlan0
23 * Scanning for access points
24 * no access points found
25 * Couldn't find any access points on wlan0
26 * Failed to configure wireless for wlan0 [ !! ]
27 =====================================================
28
29 Here's some additional relevant info:
30 =====================================================
31 # iwlist wlan0 scanning
32 wlan0 Interface doesn't support scanning : Network is down
33
34 # iwconfig wlan0
35 wlan0 IEEE 802.11g ESSID:""
36 Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
37 RTS thr:off Fragment thr=2346 B
38 Encryption key:off
39 Link Quality:0 Signal level:0 Noise level:0
40 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
41 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
42 =====================================================
43
44 The device and its modules are loaded:
45 =====================================================
46 # lsusb
47 Bus 003 Device 001: ID 0000:0000
48 Bus 002 Device 007: ID 050d:7050 Belkin Components F5D7050 ver 1000 WiFi
49
50 # lsmod | grep -i 2500
51 rt2500usb 31168 0
52 80211 157644 2 rt2500usb,rc80211_simple
53
54 # lsmod | grep -i 80211
55 ieee80211softmac 26880 0
56 ieee80211_crypt_ccmp 6720 0
57 ieee80211_crypt_wep 4032 0
58 rc80211_simple 4416 0
59 80211 157644 2 rt2500usb,rc80211_simple
60 =====================================================
61
62 tcpdump doesn't show much when run immediately after I insert the adaptor:
63 =====================================================
64 # tcpdump -vv -i wlan0
65 tcpdump: WARNING: wlan0: no IPv4 address assigned
66 tcpdump: listening on wlan0, link-type EN10MB (Ethernet), capture size 68
67 bytes
68 tcpdump: pcap_loop: recvfrom: Network is down
69 0 packets captured
70 0 packets received by filter
71 0 packets dropped by kernel
72 =====================================================
73
74 Would you perhaps know how I may be able to troubleshoot this thing before I
75 lose my temper and throw it out of the window?
76
77 PS. I might have un/plugged it during probing/scanning - could that have
78 caused some physical damage?
79 --
80 Regards,
81 Mick

Replies

Subject Author
Re: [gentoo-user] WiFi adaptor playing up James Ausmus <james.ausmus@×××××.com>