Every time i open 1.8.9 it tries to download then stops

Name: lwjgl-2.9.4-nightly-20150209.jar
URL: https://libraries.minecraft.net/org/lwjgl/lwjgl/lwjgl/2.9.4-nightly-20150209/lwjgl-2.9.4-nightly-20150209.jar
Error details: Request error -100: ERR_CONNECTION_CLOSED
Filename on disk: lwjgl-2.9.4-nightly-20150209.jar
Path: /Users/nigelpereira/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.4-nightly-20150209/lwjgl-2.9.4-nightly-20150209.jar
Exists: false

this keeps hapening everytime i load 1.8.9