I went to join a private server and had to downgrade my WoW to 2.4.2, so I deleted my patch.mpq and ran a repair like i had done many times in the past, but it didn't tell me that it had to be downgraded, it said that the repair had completed even though WoW still doesn't work on a server that is 2.4.3.
Then I tried to patch thinking maybe it would work anyways but I got an error saying the patch file was corrupted. After that i tried to re-download the patch and i got an error at 99% saying unauthorized download and that there were multiple problems saving the data. I tried downloading other patches and had the same problem.
Can someone tell me what might have happened and if I have to re-install WoW altogether and if I do that will it be unauthorized and have troubles saving? I'm really at a loss.
UPDATE: I downloaded a patch directly off of filefront and also attempted to fully reinstall wow and STILL both files became corrupted!