Could not establish a connection with the unity package manager local server process. This is most likely due to a proxy or firewall configuration. make sure the proccess UnityPackageManager.exe is reachable via HTTP on the IP address 127.0.0.1 I have been having this error for the last couple of days and can't get use unity because of it. My OS is Windows 10 Home edition. I tried restarting the laptop multiple times aswell. I uninstalled my antivirus and added an exception to the mentioned EXE and the unity editor EXE and the unity hub EXE too and it didn't work then I desactivated windows defender/firewall and it didn't work. I uninstalled the last windows update too (the only difference between last time it worked was the windows update) I tried multiple versions of unity but i got the same result (2019.2.6f1, 2019.1.14f1, 2019.1.7f1 and lastly 2020.1.0a3 which had the diagnose feature which gave me the joined log). I tried installing with Unity hub and without it. I tried uninstalling and reinstalling Unity and Unity hub too. I tried @echo off set HTTP_PROXY=proxy-url set HTTPS_PROXY=proxy-url start "" "C:\Program Files\Unity Hub\Unity Hub.exe" as a .cmd and it didn't work. I have read and tried all the pinned threads about packageManager and Network Config too Is there a way to fix this?