Ckfinder max file size

Hi there, hopefully some one can help.

My server is configured to allow filesizes of upto 200Mb, but when i try to upload a file with CKfinder over 100MB i always get an error saying the file is too big. Anything under 100Mb works fine.
I need to be able to upload the same size as the server php.ini defines.
I have set any maxsize options on the config.php to 0.

Also is there a way to see what CKFinder considers too big? Can i dump the value of maxsize its is checking somehow or display it in the error message?

Any ideas?
Thank you.