Windows XP No Internet After Installing SP3

If you cannot get on internet after you have installed service pack 3,  it might be that your DHCP server is no longer giving your PC the DNS server.   We have also noticed that Symantec Endpoint Protection randomly detects your DNS server as an attacker and blocks access to that IP.  For that this patch will not work,  either turn off the Threat Protection in SEP or configure your LAN IP range as exclusions in the Endpoint Protection Manager.


Try this windows update if your PC is not getting the DNS server settings.


xp sp3 dhcp dns patch