Internet access stopped suddenly on two separate lubuntu laptops, one running 16.04 and another 17.10. They still show connected to WiFi. However I am able to access the Internet on other devices.
I haven't changed any network/router configurations so I don't know how both the computers stopped connecting within the space of a couple of days. It seems to be a DNS issue but the solution suggested in this link doesn't seem to help.
Edit : ping 8.8.8.8 returns "connect: Invalid argument". ifconfig returns this
Edit 2: If it helps, I get an err_address_unreachable error when trying to connect. Rebooting and running ifconfig again, I get the following:
enp5s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether e8:11:32:9d:69:82 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 1129 bytes 191372 (191.3 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1129 bytes 191372 (191.3 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp3s0b1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.3 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::2640:952e:2a5f:296d prefixlen 64 scopeid 0x20<link>
ether 90:a4:de:a9:49:88 txqueuelen 1000 (Ethernet)
RX packets 142 bytes 33255 (33.2 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 507 bytes 54531 (54.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Edit 3: ping 8.8.8.8 now results in:
27 packets transmitted, 0 received, +19 errors, 100% packet loss, time 26597ms pipe 4
Edit 4: the 16.04 had the mac address bug and it is now resolved. I was thrown off track - these are separate issues. Should I make a separate post?
ping 8.8.8.8
(Google DNS Server) and add the output to the question. And please add the outputofifconfig
to the question.