There are lots of posts about this topic, and I understand what the common fixes are. I am having issues uploading large files with Gravity Forms. I have increased my limits in PHP.ini and have no problems uploading a 1.6GB file using the Wordpress Media manager in the backend. When I try to upload files using a GF upload form field from the front end, it always times out. Specifically I get this:
Error 101 (net::ERR_CONNECTION_RESET): The connection was reset.