Unity Package Manager Error

Since Friday, I get the following error when I want to open a Project:
Could not etablish a connectio with the Unity Package Manager local Server process. This is most likely due to a Proxy or Firewall configuration. Make sure the process (some Location where I have got the Unity Package Manager Server) is reachable via HTTP on the IP-adress 127.0.0.1.
I reinstalled Unity but that doesn’t solve the Problem. I downloaded Unity Package Manager Diagnostics and its result was

Unity Package Manager Diagnostics
Version 0.1.3
Starting diagnostics. Please do not close this window. This may take a few minutes…
√ Making an HTTP request to the UPM package registry…
√ Measuring the latency of the UPM package registry API…
:bangbang: Measuring the latency of the UPM package download endpoint…
√ Testing the Internet connection using the UPM package registry…
√ Testing the Internet connection using Speedtest.net
√ Detecting whether proxy-related environment variables are set…
Created report at ‘C:\ProgramData\Unity\UnityPackageManagerDiagnostics\diagnostic_report_21_01_2020_191839,15.txt’

So what is wrong with the latency of the Unity Package Manager package endpoint and how can I fix it?

Note: I am using Unity 2019.2.18f1 but I also used other versions in the past. I’m using Unity since december 2019.

I hope you can help me, thanks.

Hi @BowserJfromJTJGGames ,

I don’t think the latency is the issue here. It could be a background Anti-virus or OS update that now blocks local connection. The problem is not Unity unable to reach a server on the internet but unable to connect to another process on your machine.

Hope it helps,

Regards,

Pascal

Do I Need to follow any rules?

It finally works after a OS Update, thank you! Unity is a great engine and I’m happy to can use again.

I am confused in which I need to change?

Check out the pinned thread about connection issues to get a few tips on making sure your network settings are up to scratch.