Why can I browse with Firefox but not with Safari or Chrome? I had a problem a while back where Chrome was working fine but Safari and Firefox were not. This was fixed by unchecking the "auto-discover proxy" box in the network configuration. See my previous question: Why can&#39;t I browse the internet with Safari, but Chrome is working?

Today I find myself able to browse with Firefox but not with Chrome or Safari. A select few pages are still working but mostly nothing. Chrome will give me an error:

 Error 7 (net::ERR_TIMED_OUT): The operation timed out.


To help rule out a few things this even happens when trying to browse to my firewall http://192.168.0.1

Thanks for any help in advance!

I'm running OS X 10.7.2.
I can't be 100% sure which of these resolved the issue but i took these steps and everything is now working (touch wood):


Terminal

sudo mv ~/Library/Keychains/login.keychain ~/Library/Keychains/login.keychain.bak
sudo mv /Library/Keychains/System.keychain /Library/Keychains/System.keychain.bak

Reboot
I'd now lost network connectivity and wifi wouldn't connect- i think this is because the wireless key is stored in the keychain which i'd "deleted". I managed to resolve this by going to network preferences, wifi, assist-me and stepping through the wizard.
Lastly i ran software update and upgraded to 10.7.3


Voila