XP-Pro SP3. Recent re-build after de-ban, all Os / drivers - installed and patched / updated. Issue is that it has stopped connecting to Internet, previously not a problem. Physicals checked - changed cable and port on switch, Check router rules to make sure there are no peculiar rules blocking this one IP. Firewall has been checked and settings good. Nothing untoward showing up in the log files. Can ping inside and outside network with no packet loss. Running the connection diagnostics it suggests that http, https, ports are being blocked. Yet there is traffic on the network connection. If I attempt to load a page, it hangs for 10 - 15 minutes then slowly draws page. would very much appreciate a pointer to a solution.