Upgrade broke internet

[heli37]

Hi

I have just upgraded to Jaunty Jackelope and now my internet connection doesn't work. Firefox starts up but the screen remains empty and it claims "done".

I have also tried entering the address to access my router's setup but that doesn't work either

Please help before my wife kills me

I'm not very technical so easy steps please (plus I'm having to ask this from work and the nachine is at home so if I need to come back with any info I will have to get it overnight and post the answer tomorrow

Thanks very much in advance

[Draciron]

If you are using Gnome as your desktop manager mouse over the two arrows icon up at the top. When you do it should say something like wired network ETH0 active. If it doesn't right click on it, select edit connections and make ETH0 active.

Open up a console window. Then type

ifconfig

You will get something like this in response.

eth0 Link encap:Ethernet HWaddr 00:00:00:0:00
inet addr:192.168.1.109 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21d:60ff:fef8:1209/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:169617518 errors:0 dropped:0 overruns:0 frame:0
TX packets:93422749 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2543090857 (2.5 GB) TX bytes:1225629643 (1.2 GB)
Interrupt:17 Base address:0x2000

eth1 Link encap:Ethernet HWaddr xxx
inet6 addr: fe80::204:5aff:fe8c:cd8a/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:4 dropped:0 overruns:0 carrier:8
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:10 Base address:0xbc00

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:266104 errors:0 dropped:0 overruns:0 frame:0
TX packets:266104 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:41798677 (41.7 MB) TX bytes:41798677 (41.7 MB)

If you have no ETHO or ETH1, they are zeros or you have a 168.xxx.xxx.xxx then you are not talking too the router. Check your cables. Plug the cable into a different port on the router. If not post back results and further troubleshooting can be done.

Next triy to ping the router.

So if your ip address is 192.168.1.100 in the command line type
ping 192.168.1.1 or 192.168.0.1 Look up your model of router for the exact default IP address of the router. They can be rather varied. If the ping comes back with something like

64 bytes from 74.125.227.20: icmp_seq=1 ttl=55 time=18.4 ms
64 bytes from 74.125.227.20: icmp_seq=2 ttl=55 time=17.2 ms
64 bytes from 74.125.227.20: icmp_seq=3 ttl=55 time=18.4 ms

Hit control C to exit ping and you know your talking too your router. Reboot yourr router. If you still have no IP but your getting out on a nother machine repost here. If all your machines cannot connect then connect directly to the modem as your router probably died on you.