#11 - Sept. 25, 2007, 3:46 p.m.
Well this is not related to the issue from March that Vaneras posted about above, but there is currently a known issue with fishing where players in some ocean areas are unable to catch fish. The areas are limited to ocean waters in the 40-50 level range, including places like Feralas and Tanaris.
Fishing nodes will still function normally.
This will be fixed with the 2.2 patch tomorrow.