Ethernet not working, wifi works fine, what to do?

Hi
I have a problem with my Aspire One A110, my ethernet/wired connection doens't work. I can access my routers setup page just normally and I can ping my router, but nothing else works. But with wifi there is no problem, everything works just as it should! So how could i get the wired connection working again?

Edit: actually the wlan doesn't seem to work 100% perfectly, it works fine with one of my accesspoints but not with the other..But the wired connection is anyway the bigger problem. By the way, the problem started when I tried to use my mobile phone as a usb-modem with wvdial and edited some settings in /etc/wvdial.conf and /etc/resolv.conf but I changed back the settings to the defaults and it didn't help. Please help me, I have no idea what to do...

 

Can anyone help? The One gets an ip adress when I connect the ethernet cable, but no pages can be viewed (only the routers setup page at 192.168.2.1).

 

I'd try resetting the router and also make sure its in DHCP mode.

 

What is in /etc/resolv.conf, and what's the output of the command 'sudo route' ?

/etc/resolv.conf usually be where the system looks for your DNS settings. Being able to obtain an address and contact the router (by IP address) but nothing else could mean you have an incorrect DNS setup.

sudo route should tell you what gateway is set up; again an incorrect gateway could be affecting routing beyond the router itself.

 

Here are the results when connected by ethernet:

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 * 255.255.255.0 U 0 0 0 eth0
default 192.168.2.1 0.0.0.0 UG 0 0 0 eth0

and /etc/resolv.conf:
# generated by NetworkManager, do not edit!

nameserver 192.168.2.1


And for wifi:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 * 255.255.255.0 U 0 0 0 ath0
default 192.168.2.1 0.0.0.0 UG 0 0 0 ath0

# generated by NetworkManager, do not edit!

nameserver 192.168.2.1


Should it look like that? By the way, the wifi works with one of my wlan-routers which gives a 192.168.2.xx ip, but not with my other router which gives a 192.168.10.xx ip, and also not with my FON routers unprotected ssid. With ethernet nothing else than 192.168.2.1 seems to work. And my connection works really perfectly with my two other pc:s so it shouldn't be a router problem.

 

Those results look OK: let's try something else.

What do you get for:

Code:

sudo ifconfig
sudo iwconfig

 

Here are the results:

[user@localhost ~]$ sudo ifconfig

audit_log_user_command(): Connection refused

ath0 Link encap:Ethernet HWaddr 00:22:68:AB:4E:A3
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:15 errors:0 dropped:0 overruns:0 frame:0
TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4904 (4.7 KiB) TX bytes:3935 (3.8 KiB)


eth0 Link encap:Ethernet HWaddr 00:1E:68:97:60:A1
inet addr:192.168.2.33 Bcast:192.168.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:495 errors:0 dropped:0 overruns:0 frame:0
TX packets:433 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:35384 (34.5 KiB) TX bytes:26331 (25.7 KiB)
Interrupt:17 Base address:0x8000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:100 (100.0 b) TX bytes:100 (100.0 b)

wifi0 Link encap:UNSPEC HWaddr 00-22-68-AB-4E-A3-28-E9-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11404 errors:0 dropped:0 overruns:0 frame:272
TX packets:272 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:199
RX bytes:1496461 (1.4 MiB) TX bytes:18707 (18.2 KiB)
Interrupt:18 Memory:f8de0000-f8df0000

and:

[user@localhost ~]$ sudo iwconfig

audit_log_user_command(): Connection refused
lo no wireless extensions.
eth0 no wireless extensions.
wifi0 no wireless extensions.

ath0 IEEE 802.11g ESSID:"" Nickname:""
Mode:Managed Channel:0 Access Point: 00:16:E3:EA:88:83
Bit Rate:0 kb/s Tx-Power:18 dBm Sensitivity=1/3
Retryff RTS thrff Fragment thrff
Encryption keyff
Power Managementff
Link Quality=0/94 Signal level=161/162 Noise level=161/161
Rx invalid nwid:12701 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0



EDIT: well in some way I got it working now, thanks for the help!!