I'm having a wireless connection issue with an HP laptop and a Zotac
media server after the 6.4 package updates from CR repository. Nothing
changed with wireless config as far as I can tell. Both have been
working fine with previous releases of 6.x.
Oddly, if a cat 5 cable is connected for a few seconds and then
disconnected the wireless works fine and survives a 'service network
restart' but does not survive a reboot. A laptop running Ubuntu 12.04
continues to connect normally.
The boxes in question appear to connect to the router/accesspoint, are
assigned correct static IPs, but cannot ping any box on the intranet
including the router. No other boxes on the intranet can ping the hp or
zotac, Once a network cable is inserted and removed all is well with
that box. The zotac box uses the ath9k wireless driver, the HP uses b43.
Same result using DHCP instead of static IP.
Output of iwconfig appears normal on both errant boxes and does not
change from non-working to working state.
Google has not been much help. FWIW, here is output of iwconfig and
ifconfig.
~]$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:01:2E:BC:74:14
inet6 addr: fe80::201:2eff:febc:7414/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:1249 (1.2 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:89 errors:0 dropped:0 overruns:0 frame:0
TX packets:89 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8807 (8.6 KiB) TX bytes:8807 (8.6 KiB)
wlan0 Link encap:Ethernet HWaddr 74:F0:6D:8C:FE:CF
inet addr:192.168.1.208 Bcast:192.168.1.255
Mask:255.255.255.0
inet6 addr: fe80::76f0:6dff:fe8c:fecf/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:732 errors:0 dropped:0 overruns:0 frame:0
TX packets:79 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:107489 (104.9 KiB) TX bytes:9217 (9.0 KiB)
[LSF at nra ~]$ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"toadnet"
Mode:Managed Frequency:2.437 GHz Access Point:
00:24:93:38:89:80
Bit Rate=54 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=70/70 Signal level=-28 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:29 Missed beacon:0
Any thoughts appreciated.
B.J.
CentOS release 6.3 (Final)