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Thread: Intel 5100AGN wireless connects but cannot ping anything

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hello everyone,

yesterday decided upgrade ubuntu precise (12.04 lts) , went sorta smooth, except wlan home network. claim connection established, not go online. experienced weird stuff it, sum ease :

  1. i can't ping gateway or other computers in network
  2. i have internet when using external wifi usb dongle
  3. in windows have internet same network, same (built in) wifi device
  4. on university have internet in ubuntu same network device


make not long story short, seems combination of home network , built in wifi card gives me sort of issue. did not have issue on 11.04 though, nor on windows, suggests kind of driver issue?

searched , found similar topics online, none of them worked me or outdated.

below information may help:

lspci :

code:
02:00.0 ethernet controller: realtek semiconductor co., ltd. rtl8111/8168b pci express gigabit ethernet controller (rev 02)  03:00.0 network controller: intel corporation pro/wireless 5100 agn [shiloh] network connection
iwconfig wlan0 :

code:
wlan0     ieee 802.11abgn  essid:"dd-wrt-nd"              mode:managed  frequency:2.437 ghz  access point: 00:25:9c:ca:7b:3c               bit rate=54 mb/s   tx-power=15 dbm               retry  long limit:7   rts thr:off   fragment thr:off            power management:on            link quality=37/70  signal level=-73 dbm              rx invalid nwid:0  rx invalid crypt:0  rx invalid frag:0            tx excessive retries:0  invalid misc:34   missed beacon:0
lsmod | grep 'wl' :
code:
iwlwifi               328352  0   mac80211              506816  3 rt2x00usb,rt2x00lib,iwlwifi  cfg80211              205544  3 rt2x00lib,iwlwifi,mac80211
dmesg :

code:
[ 3434.540590] wlan0: authenticate 00:25:9c:ca:7b:3c (try 1)  [ 3434.549061] wlan0: authenticated  [ 3434.552569] wlan0: associate 00:25:9c:ca:7b:3c (try 1)  [ 3434.558458] wlan0: rx assocresp 00:25:9c:ca:7b:3c (capab=0x411 status=0 aid=2)  [ 3434.558463] wlan0: associated  [ 3434.574149] addrconf(netdev_change): wlan0: link becomes ready  [ 3443.147263] iwlwifi 0000:03:00.0: tx aggregation enabled on ra = 00:25:9c:ca:7b:3c tid = 6  [ 3445.632049] wlan0: no ipv6 routers present  [ 3498.793426] iwlwifi 0000:03:00.0: tx aggregation enabled on ra = 00:25:9c:ca:7b:3c tid = 0
uname -mr
code:
3.2.0-23-generic x86_64
if there more can supply, let me know. i'm getting bit clueless here


update:
ok quick ... think fixed it. installed drivers here (http://linuxwireless.org/en/users/download) , seems have helped.



Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Networking & Wireless [ubuntu] Intel 5100AGN wireless connects but cannot ping anything


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