I have Windows 10, and have tried to change my IP address in every way imaginable.
-ipconfig/release and renew
-disconnecting from the router and restarting my computer
-going to router configuration (TP-Link) and renewing IP address through there (yes, it says my IP is dynamic)
...but the IPv6 address appears the same whenever I check ipconfig.
Problem is, somebody obtained my IP address last night and tried to DOS me. Am I crazy, or is whatever IP address this guy has still valid to DOS me after all my efforts? BTW, not that it matters, but he obtained my IP through a malicious .png on Steam and has since been reported.