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I'm using an ALFA Network adapter to connect to a Wi-Fi. It works fine in Windows(using it right now), but when I go to Ubuntu, the Internet doesn't work. The driver is installed correctly as far as I can tell, it says the connection to the Wi-Fi is established but when I try to load a page it says connection lost or page can't be loaded, I also tried downloading something from a terminal, shows the same problem(connection lost).

What could be causing this? How to fix it?

This is the result of pinging on the google DNS.

ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. From 192.168.1.9 icmp_seq=1 Destination Host Unreachable From 192.168.1.9 icmp_seq=2 Destination Host Unreachable From 192.168.1.9 icmp_seq=3 Destination Host Unreachable From 192.168.1.9 icmp_seq=4 Destination Host Unreachable From 192.168.1.9 icmp_seq=5 Destination Host Unreachable From 192.168.1.9 icmp_seq=6 Destination Host Unreachable From 192.168.1.9 icmp_seq=7 Destination Host Unreachable From 192.168.1.9 icmp_seq=8 Destination Host Unreachable From 192.168.1.9 icmp_seq=9 Destination Host Unreachable From 192.168.1.9 icmp_seq=10 Destination Host Unreachable From 192.168.1.9 icmp_seq=11 Destination Host Unreachable From 192.168.1.9 icmp_seq=12 Destination Host Unreachable From 192.168.1.9 icmp_seq=13 Destination Host Unreachable From 192.168.1.9 icmp_seq=14 Destination Host Unreachable From 192.168.1.9 icmp_seq=15 Destination Host Unreachable From 192.168.1.9 icmp_seq=16 Destination Host Unreachable From 192.168.1.9 icmp_seq=17 Destination Host Unreachable From 192.168.1.9 icmp_seq=18 Destination Host Unreachable From 192.168.1.9 icmp_seq=19 Destination Host Unreachable From 192.168.1.9 icmp_seq=20 Destination Host Unreachable From 192.168.1.9 icmp_seq=21 Destination Host Unreachable From 192.168.1.9 icmp_seq=22 Destination Host Unreachable From 192.168.1.9 icmp_seq=23 Destination Host Unreachable From 192.168.1.9 icmp_seq=24 Destination Host Unreachable From 192.168.1.9 icmp_seq=25 Destination Host Unreachable From 192.168.1.9 icmp_seq=26 Destination Host Unreachable From 192.168.1.9 icmp_seq=27 Destination Host Unreachable From 192.168.1.9 icmp_seq=28 Destination Host Unreachable From 192.168.1.9 icmp_seq=29 Destination Host Unreachable From 192.168.1.9 icmp_seq=30 Destination Host Unreachable From 192.168.1.9 icmp_seq=31 Destination Host Unreachable From 192.168.1.9 icmp_seq=32 Destination Host Unreachable From 192.168.1.9 icmp_seq=33 Destination Host Unreachable From 192.168.1.9 icmp_seq=34 Destination Host Unreachable From 192.168.1.9 icmp_seq=35 Destination Host Unreachable From 192.168.1.9 icmp_seq=36 Destination Host Unreachable From 192.168.1.9 icmp_seq=37 Destination Host Unreachable From 192.168.1.9 icmp_seq=38 Destination Host Unreachable From 192.168.1.9 icmp_seq=39 Destination Host Unreachable From 192.168.1.9 icmp_seq=40 Destination Host Unreachable From 192.168.1.9 icmp_seq=41 Destination Host Unreachable From 192.168.1.9 icmp_seq=42 Destination Host Unreachable ^C --- 8.8.8.8 ping statistics --- 43 packets transmitted, 0 received, +42 errors, 100% packet loss, time 42146ms pipe 4

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  • Have you tried pinging sites and their IP addresses? For example, ping www.google.com, and then 8.8.8.8. Let us know the output. Nov 23 '16 at 20:49
  • @ServiceManager updated the original post.
    – Amine
    Nov 23 '16 at 22:16
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It looks like you do not have a "default route" set up.

ip route  

will show you your routes.

iwconfig  

will let you find your Wifi device name (device names are in the first column - pick the one that does NOT say no wireless extensions.

For the following example, to set up a "default" route on wlan0, where <IP> is the IP address of your router,

sudo route add default via <IP> dev wlan0

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