internet connection stopped working, but wifi connection looks fine (ubuntu 18.04.2)

Antoine

I see many other posts with the same issue but cannot find any solution nor explanation and keep clicking on links endlessly so I would appreciate some guidance on this issue, rather than "just trying" to "Forget the connection" and setting it up again.

What I have tried:

Connection to my home wifi seems fine: Settings > Wifi shows my wifi and the signal strength is "good", an IPv4 Address of 192.168.0.4, and other normal-looking information.

Typing 192.168.0.4 into my browser opens the "Apache2 Ubuntu Default Page".

Typing 192.168.0.1 into my browser opens up a page with my router configuration.

Result of dig 1.1.1.1:

; <<>> DiG 9.11.3-1ubuntu1.8-Ubuntu <<>> 1.1.1.1  
;; global connections: +cmd
;; connection timed out; no servers could be reached

Result of ip route

default via 192.168.0.1 dev wlp3s0 proto dhcp metric 600
169.254.0.0/16 dev wlp3s0 scope link metric 1000
192.168.0.0/24 dev wlp3s0 proto kernel scope link src 192.168.0.4 metric 600

Result of ping 8.8.8.8:

PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
ping: sendmsg: Operation not permitted

Result of ping example.com:

ping: example.com: Name or service not known

Running nmcli dev show wlp3s0 spits a bunch of things, but I don't know what to look for.

I did reboot my computer, with no change.

Note. I do have the ip command on my system (which should be enough for diagnostics), but I do not have any of the following commands that I see in other answers: ifconfig, netstats, route, arp, traceroute (which all seem deprecated?).

heynnema

From the comments...

Since you get a proper IP address of 192.168.0.4, and you can get to the routers admin page at 192.168.0.1, but you can't ping 8.8.8.8, the problem must be with your router, or your cable/DSL modem. It is a little strange that you can get to the Internet with some other computers.

You've already rebooted the computer. POWER CYCLE your router AND cable/DSL modem. Wait 15 seconds between powering back on. Power on the modem first, wait 15 seconds, then power on the router.

Retry Internet access.

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