tumic
12
Hmm, the log looks really weird… can you post here the list of loaded kernel extensions?
sudo kextstat
As you have 10.7 Lion, there might be some pf firewall rules, can you post the output from pfctl?
sudo pfctl -s all
And finally, did you try to reboot the machine? If not, please try it and see, if it has not fixed the issue. If not, please attach again the system log entries.
grep proxy /var/log/system.log