php - Wordpress large file upload error -

i trying upload large files using built-in uploader (1 gig or more.) however, (randomly) http upload errors. more frequent larger file is.

i having problems files larger 100 mb.

in php.ini, have set:

file_uploads upload_max_filesize max_input_time memory_limit max_execution_time post_max_size 

...to 1.2gb 600 seconds time limits.

an upload of 130mb lasts 15 minutes still fails. ajax response is:

<!-- shtml wrapper - 500 server error --> [an error occurred while processing directive] 

is because on shared server plan? if move vps problem stop?

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update:

i have tried ftp plugins, , uploading via standard wordpress browser uploader , same error:

[an error occurred while processing directive] 

my problem integrating sort of ftp solution in wordpress itself. client not want use separate method uploading. rather have in wp admin.

i've been looking better ftp uploader plugins seem un-supported few years. there no way @ make work within wordpress? if move site vps still face same limitations?

i use http://php.net/manual/en/function.phpinfo.php function see effective settings php using. on shared servers, many php ini settings locked down , can't change them without being root.

yes, on virtual private server, typically have root access means can want. recommend amazon's ec2 if want go route. dedicate micro instance run $20/month, give root access , 100% control on customization. performance on par shared hosting service bluehost or other cpanel based hosting solutions.