I have a need to upload large files 500MB to 1GB.  When I try to upload anything larger than about 150 MB the upload just stops at 150MB.  No error, no event it just hangs. If I try the same file it will hang at the same point, so I seem to be running into some limit.  I am able to upload 100MB files but I seem to run into a limit around 150MB.  I have increased maxRequestLength in web.config as shown. Any thoughts on what is happening or how I can get to the root of the problem?  Thanks

 <httpRuntime maxRequestLength="2097151" />