Connected to wireless, but no internet access

Posted by boogaloo on Ask Ubuntu See other posts from Ask Ubuntu or by boogaloo
Published on 2013-06-28T05:45:39Z Indexed on 2013/06/28 10:29 UTC
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Filed under:

wireless

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networking

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internet

After installing Ubuntu 12.04 a week ago wireless internet had been working fine. It stopped working yesterday, however, and I'm at a loss for what to do even after scouring replies to similar posted problems.

I have tried using Google's public DNS and turning off proxy settings on Firefox. I have used nm-tool and lshw to make sure my wireless device and driver are connected. If anyone can help me resolve this issue I would be extremely grateful!

@kregerjd

$ ping -c3 www.google.com
ping: unknown host www.google.com

@Alaa:

$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 wlan0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlan0
192.168.1.0     0.0.0.0         255.255.255.0   U     2      0        0 wlan0

$ ping -c4 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data
From 192.168.1.104 icmp_seq=1 Destination Host Unavailable
From 192.168.1.104 icmp_seq=2 Destination Host Unavailable

--- 192.168.1.1 ping statistics ---
4 packets transmitted, 0 received, +2 errors, 100% packet loss, time 2998ms
pipe 4

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