Could not establish a connection with the Unity Package Manager local server process

I am having trouble trying to start Unity. Every time I try to launch Unity from the Unity Hub I get this message:

"Could not establish a connection with the Unity Package Manager local server process. This is most likely due to a proxy or firewall configuration."

This doesn't make sense because I've turned off my proxy, checked my firewall, and ensured that everything in the Inbound Rules section that starts with the word "Unity" is enabled. I've looked for solutions, but haven't found any. Any help would be appreciated!

Also, included are the Editor and Diagnostic reports.

 

So, I still haven't gotten anywhere. However, the Windows OS recently got an update, so I tried to run more diagnostics. In addition to the diagnostic attached below, I got the following results:



If it helps, this is the text that was in the upm-diag log:

[2020-06-25T18:35:11.570Z][INFO] Opened report file 'C:\ProgramData\Unity\UnityPackageManagerDiagnostics\diagnostic_report_Thu_06_25_2020_143510_36.txt'
[2020-06-25T18:35:11.570Z][INFO] Starting diagnostics
[2020-06-25T18:35:11.570Z][INFO][UpmRegistryReachable] Sending HEAD request to https://packages.unity.com
[2020-06-25T18:35:11.601Z][INFO][PingUpmRegistry] Starting ping test on 'http://packages.unity.com/com.unity.package-manager.metadata'
[2020-06-25T18:35:11.617Z][INFO][PingUpmDownload] Starting ping test on 'http://download.packages.unity.com/.../com.unity.package-manager.metadata-0.0.1.tgz'
[2020-06-25T18:35:11.632Z][INFO][UpmRegistryDownloadSpeed] Starting speed test with UPM registry
[2020-06-25T18:35:11.648Z][INFO][Speedtest.Net] Starting speed test with Speedtest.net
[2020-06-25T18:35:11.648Z][INFO] Finished diagnostics
[2020-06-25T18:35:11.648Z][INFO] Created report at 'C:\ProgramData\Unity\UnityPackageManagerDiagnostics\diagnostic_report_Thu_06_25_2020_143510_36.txt'

...and in the editor:

[LicensingClient] ERROR Failed to connect to local IPC
[Licensing::Module] Failed to connect to channel: LicenseClient-Neal
[Licensing::Module] Successfully launched the LicensingClient
[Licensing::Module] Successfully connected to LicensingClient on channel: LicenseClient-Neal
[Licensing::Module] Successfully launched and connected to LicensingClient
Entitlement-based licensing initiated
[LicensingClient] Licenses Updated successfully in LicensingClient
LICENSE SYSTEM [2020625 14:34:21] Next license update check is after 2020-06-26T18:18:58
Built from '2019.3/staging' branch; Version is '2019.3.12f1 (84b23722532d) revision 8696375'; Using compiler version '191627012'
OS: 'Windows 10 (10.0.0) 64bit' Language: 'en' Physical Memory: 8069 MB
[Licensing::Module] Serial number assigned to: "F4-8NCT-MSWH-6U7H-Q2E4-XXXX"\nBatchMode: 0, IsHumanControllingUs: 1, StartBugReporterOnCrash: 1, Is64bit: 1, IsPro: 0
[Package Manager] Server::Start -- Port 57019 was selected
COMMAND LINE ARGUMENTS:
C:\Program Files\Unity\Hub\Editor\2019.3.12f1\Editor\Unity.exe
-projectpath
C:/Users/hpps2/Documents/Unreal Projects/New Unity Project
-useHub
-hubIPC
-cloudEnvironment
production
-hubSessionId
537e0930-b710-11ea-859d-a383212b43b3
Successfully changed project path to: C:/Users/hpps2/Documents/Unreal Projects/New Unity Project
C:/Users/hpps2/Documents/Unreal Projects/New Unity Project
Using Asset Import Pipeline V2.
Cancelling DisplayDialog because it was run from a thread that is not the main thread: Copying file failed Copying C:/Program Files/Unity/Hub/Editor/2019.3.12f1/Editor/Data/Resources/JavascriptPackages/package.json to C:/Users/hpps2/AppData/Roaming/Unity/Packages/package.json: The system cannot find the file specified.
(Filename: C:\buildslave\unity\build\Editor/Platform/Windows/EditorUtility.cpp Line: 1207)
[Package Manager] Server::EnsureServerProcessIsRunning -- ReadyRequest exceeded maximum alloted time, ran for [10] seconds
[Package Manager] Server::Kill -- Server was shutdown
[Package Manager] PackageManager Server::Start -- Process restart attempt #2
[Package Manager] Server::Start -- Port 57024 was selected
[Package Manager] Cannot connect to Unity Package Manager local server
[Package Manager] Server::EnsureServerProcessIsRunning -- ReadyRequest exceeded maximum alloted time, ran for [10] seconds
[Package Manager] Server::Kill -- Server was shutdown
[Package Manager] PackageManager Server::Start -- Process restart attempt #3
[Package Manager] Server::Start -- Port 57025 was selected
[Package Manager] Cannot connect to Unity Package Manager local server
[Package Manager] Server::EnsureServerProcessIsRunning -- ReadyRequest exceeded maximum alloted time, ran for [10] seconds
[Package Manager] Server::Kill -- Server was shutdown
[Package Manager] PackageManager Server::Start -- Process restart attempt #4
[Package Manager] Server::Start -- Port 57026 was selected
[Package Manager] Cannot connect to Unity Package Manager local server
[Package Manager] 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 process [C:/Program Files/Unity/Hub/Editor/2019.3.12f1/Editor/Data/Resources/PackageManager/Server/UnityPackageManager.exe] is reachable via HTTP on the IP address 127.0.0.1.
[Package Manager] Diagnostics::Start -- Successfully launched external process

...and in the editor-prev:

[LicensingClient] ERROR Failed to connect to local IPC
[Licensing::Module] Failed to connect to channel: LicenseClient-Neal
[Licensing::Module] Successfully launched the LicensingClient
[Licensing::Module] Successfully connected to LicensingClient on channel: LicenseClient-Neal
[Licensing::Module] Successfully launched and connected to LicensingClient
Entitlement-based licensing initiated
[LicensingClient] Licenses Updated successfully in LicensingClient
LICENSE SYSTEM [2020625 14:19:56] Next license update check is after 2020-06-26T18:18:58
Built from '2019.3/staging' branch; Version is '2019.3.12f1 (84b23722532d) revision 8696375'; Using compiler version '191627012'
OS: 'Windows 10 (10.0.0) 64bit' Language: 'en' Physical Memory: 8069 MB
[Licensing::Module] Serial number assigned to: "F4-8NCT-MSWH-6U7H-Q2E4-XXXX"\nBatchMode: 0, IsHumanControllingUs: 1, StartBugReporterOnCrash: 1, Is64bit: 1, IsPro: 0
[Package Manager] Server::Start -- Port 49757 was selected
COMMAND LINE ARGUMENTS:
C:\Program Files\Unity\Hub\Editor\2019.3.12f1\Editor\Unity.exe
-projectpath
C:/Users/hpps2/Documents/Unreal Projects/New Unity Project
-useHub
-hubIPC
-cloudEnvironment
production
-hubSessionId
537e0930-b710-11ea-859d-a383212b43b3
-accessToken
COMazM4-EZWRB-GP19q06cZlCSEeO11RMPvagcxDLBo002f
Successfully changed project path to: C:/Users/hpps2/Documents/Unreal Projects/New Unity Project
C:/Users/hpps2/Documents/Unreal Projects/New Unity Project
Using Asset Import Pipeline V2.
[Package Manager] Server::EnsureServerProcessIsRunning -- ReadyRequest exceeded maximum alloted time, ran for [18] seconds
[Package Manager] Server::Kill -- Server was shutdown
[Package Manager] PackageManager Server::Start -- Process restart attempt #2
[Package Manager] Server::Start -- Port 63241 was selected
Cancelling DisplayDialog because it was run from a thread that is not the main thread: Copying file failed Copying C:/Program Files/Unity/Hub/Editor/2019.3.12f1/Editor/Data/Resources/JavascriptPackages/package.json to C:/Users/hpps2/AppData/Roaming/Unity/Packages/package.json: The system cannot find the file specified.
(Filename: C:\buildslave\unity\build\Editor/Platform/Windows/EditorUtility.cpp Line: 1207)
[Package Manager] Server::EnsureServerProcessIsRunning -- ReadyRequest exceeded maximum alloted time, ran for [10] seconds
[Package Manager] Server::Kill -- Server was shutdown
[Package Manager] PackageManager Server::Start -- Process restart attempt #3
[Package Manager] Server::Start -- Port 49435 was selected
[Package Manager] Cannot connect to Unity Package Manager local server
[Package Manager] Server::EnsureServerProcessIsRunning -- ReadyRequest exceeded maximum alloted time, ran for [10] seconds
[Package Manager] Server::Kill -- Server was shutdown
[Package Manager] PackageManager Server::Start -- Process restart attempt #4
[Package Manager] Server::Start -- Port 49436 was selected
[Package Manager] Cannot connect to Unity Package Manager local server
[Package Manager] Server::EnsureServerProcessIsRunning -- ReadyRequest exceeded maximum alloted time, ran for [10] seconds
[Package Manager] Server::Kill -- Server was shutdown
[Package Manager] PackageManager Server::Start -- Process restart attempt #5
[Package Manager] Server::Start -- Port 49437 was selected
[Package Manager] Cannot connect to Unity Package Manager local server
[Package Manager] 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 process [C:/Program Files/Unity/Hub/Editor/2019.3.12f1/Editor/Data/Resources/PackageManager/Server/UnityPackageManager.exe] is reachable via HTTP on the IP address 127.0.0.1.
Exiting without the bug reporter. Application will terminate with return code 1

I'm still at a loss as to what I should do. Any thoughts?
(Also, sorry for the walls of text. I couldn't upload the the files themselves.

 

Hey there - can I ask if you've gone through the contents of the pinned thread already?

https://forum.unity.com/threads/rea...g-project-issues-with-package-manager.869683/