I have an older laptop PC running XP SP3. It's as patched up as Microsoft will let it be and runs fine. I want to use it on my local WiFI network to have access to a Silicondust HDHomeRun Prime (CableCARD digital cable tuner), but don't want to risk using it on the Internet any more due to the security issues.
Is there a way to configure it so it can be on my WiFI network but not have access to the Internet?
The WiFI router is a Western Digital My Net N900, the WiFi card in the PC is a Broadcom 802.11n.
The most practical way would be disabling the DNS server by typing an invalid IP number in the Internet Protocol TCP/IP / Properties / Use the following DNS Server / type an invalid IP... DNS Server is the Internet Provider, so it shouldn't affect local network access.