[B11] Failed to start package manager

After installing B11 I've got "failed to start package manager" window, I've tried to use B10 after that (Which worked before) and now it also has this error.

Editor.log:

 

@okcompute_unity
Hi, another user here with the Package Manager timeout issue.
My main versions in use are 2017.2.1p2 and 2017.3.1p3, and I'm running on Windows 10 Enterprise v.1709 (OS Build 16299.309)

To your question above, I did receive a Windows update last week, however I'm reasonably sure that I was still able to launch Unity for several days before this problem started (I was working fine during office hours on the 16th (GMT), but by evening the package manager was failing).

I was following one of your other conversations and tried the patched upm-win.exe that you offered, but that exe unfortunately failed to run at all.

Let me know if I can help diagnose this any more

Thanks

 

Yes, I did. Here's my update history:

 

Thanks Pascal, but I still get the timeout when running 2017.2 ('2017.2.1p2 (1dc514532f08) revision 1950996') with the new upm-win:

[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 #1
[Package Manager] Server::Start -- Port 51472 was selected
[Package Manager] Server::EnsureServerProcessIsRunning -- ReadyRequest exceeded maximum alloted time, ran for [11] seconds
[Package Manager] Server::Kill -- Server was shutdown
[Package Manager] PackageManager Server::Start -- Process restart attempt #2
[Package Manager] Server::Start -- Port 50647 was selected
[Package Manager] Server::EnsureServerProcessIsRunning -- ReadyRequest exceeded maximum alloted time, ran for [11] seconds
[Package Manager] Server::Kill -- Server was shutdown
[Package Manager] PackageManager Server::Start -- Process restart attempt #3
[Package Manager] Server::Start -- Port 59383 was selected
[Package Manager] Failed to start Unity Package Manager: operation timed out.​

Regarding updates, my last quality update was KB4074588, installed on 15th Feb; a driver update installed on 20th Feb. More interesting perhaps, there was an update to Windows Malicious Software Removal Tool x64 (March 2018 KB890830) installed on Thursday 15th March (a day before the problem began for me).

 

@okcompute_unity
Hi Pascal - FYI we've found a workaround to the problem in our studios, which is to add a process exclusion in Windows Defender for upm-win.exe

 

Tried B12 (Job system preview build), still not working.

 

I've tried using B8 and now it also has this error. @okcompute_unity Do you know what causes this?

 

I'm not sure if it's a Defender problem since I've disabled it through Registry Editor 2 years ago but I'll re-enable it and give it a try.

 

Still the same:

Update: Fixed it by uninstalling the latest Windows security update. I'm sure that this problem will come back after I'll install this update again.

 

I'm not even sure since I have disabled my Defender through registry editor 2 years ago. Seems like it's fixed now.