Well not to complain..lol I tried 2 more times tonight to upload something. First I tried to upload a 1080HD - 320 MB, Mpeg animation and it got to 97% uploaded and renderosity stopped taking my upload giving me a 504 error.. See screen capture.. so I went to google chrome.this time instead of firefox. and tried one more time to upload this animation. this time I tried to upload a 720HD 92MB MP4 fil;m . and it did the same thing got to about 92% uploaded and gave me this same 504 server not responding errors. message. . tested my internet speed. it checked out tonight at 12.9mbs Down & 4.7mbs -Upload and that was with hubby watching a movie on amazon prime on TV.