1. Go to whatismyipaddress.com and note your IP.
2. Clear your cookies.
3. Turb your modem and router off for 10 minutes.
4. Turn them back on.
5 Check your IP again. It should have changed. go register at d2jsp again (or buy one of my d2jsp accounts for sale).
If your IP is the same, keep your modem/router off overnight, plug in when you wake up.