Internet not working - period

[DrTaylor]

My computer is no longer able to browse the web. I cannot download software updates or log on to my IM with either wifi or a ethernet connection.

It's an atheros 5315, but this isn't the standard networking problem they experience - believe me, I'm well acquainted with that one - but something else altogether. At the moment the wifi is actually working - I have a 100% signal - but I cannot browse the web and I have no idea why.

It was working last time I used it.

A few factoids:

I am using Firefox.
IM services are not available either.
I tried to use synaptec - it doesn't work either.
I have tried all this in both ethernet and wifi.

If anyone can offer any suggestions, they would be much appreciated.

[Kevbert]

Please post the output of
iwconfig

[DrTaylor]

lo no wireless extentions

eth0 no wireless extentions

wifi0 no wireless extentions

ath0 IEEE802.11g ESSID:"Julia's Network" Nickname: ""
Mode:Managed Frequency:2.437 GHz Access Point: 00:1E:2A:00:9A:4E
Bit Rate: 36 Mb/s Tx-Power:16 dBm Sensitivity=1/1
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=72/70 Signal level=-20 dBm Noise level=-92dBm
Rx invalid nwid:729 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0


I had to type that out - I'm using my roommate's computer to ask for help.

That's the network we have set up in our home, being picked up as a wireless signal, which makes sense because I'm sitting right next to it.

[DrTaylor]

So... anyone? I'm dying here, and now my CD burner is having issues as well - haven't used it since I swtiched to Hardy.