Static Downloads over 1GB fail

Hi everyone, I am testing openlitespeed. My server doesn't serve files more than 1GB. The downloads fail when doing single threaded download via wget, but if I use a multi connection like Axel it does complete the download. This is a fresh installation with no mods. I tried on Debian stretch and Ubuntu 18.04. my settings adjustments include max body size, and increase memory. No errors are showing in the logs.. is this something I am missing, sorry I am a noob to litespeed.