Is Our IP Validation System Just Drunk, Showing Wrong Regions – Cache or Deeper Bug?

so, following up on the whole IP geolocation thing, our ip validation system is still acting like it's on vacation, showing places that are definitely not were our users are, messing with our geo-targeting efforts big time.

wondering if this is just a stubborn cache issue or if there’s a more fundamental bug lurking in the background. any thoughts?