This one has plagued us for a while, but I haven't been able to hone in on the specific problem. Only recently have I dialed in a specific, repeatable scenario that causes problems. What we're seeing Using Chrome on macOS, begin to transfer these two videos hosted by our LiteSpeed server by opening them in separate tabs. For repeatability, I recommend using an Incognito Window. (Otherwise, you'll probably need to shut down Chrome entirely to get a clean slate for testing. There seems to be "something" in Chrome's profiles (normal or Incognito) that is interacting poorly with LiteSpeed) https://social5.com/uploads/GetFound-web.mp4 https://social5.com/uploads/GetNoticed-web.mp4 The first file will begin playing immediately. The second video will stall/freeze. Using the Developer Tools in Chrome, you'll see that only a small number of bytes have been transferred. Note that if you close the first tab showing the playing video, the remaining tab will *usually* start loading and playing the desired video. Interestingly, something slightly different happens if we load a third video as well. Again, in a *new* Incognito Window, open the first two videos above in tabs. Then, also open this video: https://social5.com/uploads/GetSocial-web.mp4 The first video plays, and the second and third videos stall. However, this time, if you close the first tab, the video in the second tab does not start loading and playing. There seem to be all sorts of little nuances to this issue as well, but I'm inclined to think it's only an issue with SSL and Chrome. Some interesting additional information Performing the same tests as above, but using these non-SSL versions of the same files served from the same LiteSpeed server does not demonstrate any odd behavior (The social5.com server is configured to forward all non-SSL requests to their SSL equivalents, so unfortunately for the time being, we can't simply test the same URLs above with non-SSL): http://static.social5.com/GetFound-web.mp4 http://static.social5.com/GetNoticed-web.mp4 http://static.social5.com/GetSocial-web.mp4 Performing the same tests as above with the same files served via SSL (or non-SSL) on a non-LiteSpeed server (Apache, I believe) does not demonstrate any odd behavior: https://featurific.com/GetFound-web.mp4 https://featurific.com/GetNoticed-web.mp4 https://featurific.com/GetSocial-web.mp4 Any idea what is going on? I've searched and searched for anyone having a similar issue or for a setting that I might tweak. I'm totally lost, so hopefully someone here can shed some light on what's going on! Fingers crossed.