Warning to Lightsquid users
If you have an incomplete install of lightsquid this can cause internet issues.
I did and upgrade were I couldn't removed lightsquid and squid was no longer installed. I then change the nic interface due to needing subnet change to notice I had no network connectivity, but could ping from firewall under diag.
I noticed that after monitoring the filter reload that the filter hung on lightsquid and wouldn't go further than that hence my no internet.
Simple fix is install squid then reinstall lightsquid, once done reload the filters.