Post Voting Plugin - All Users Show Same IP Address

Hi,

We have the Post Voting plugin set to count votes on custom post types called "tracks".

Everything works as it should, except the IP limitation. When looking at the database in phpmyadmin, all votes come from the same IP, which means only 1 user can vote for a certain track per day.

In the meantime, we've turned off the IP restriction so the site can function normally.