Frequency: since 2.0 release
World name: Hyperion
Character name: Seiver Damross

This has been an issue since it was patched in 2.something.

"i have been unable to get this Achievement since they changed the fishing Achievement was lowered from 4000 to 1000. At the time of lowering i had well over 3500, now it wont give the Achievement so i can get my luminary rod." -me