I had MB404104 Error. Staff/dev read please.

[foryth]

I started getting the MB404104 error on Sunday.  I now dont get it.  It turns out MS Windows update caused the VPN to error.  I dont know why, just that when I uninstalled that update, it worked again.
The windows update is "2021-08 Cumulative Update Preview for Windows 10 Version 2004 for x64-based Systems (KB5005101)

[Malwarebytes]

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[Porthos]

6 minutes ago, foryth said:

Windows 10 Version 2004

Why are you still on 2004 and not 21h1?

You might want to avoid Cumulative Update Previews. They are pre-release for next patch Tuesday.

 

Edited August 25, 2021 by Porthos

[Porthos]

8 minutes ago, foryth said:

caused the VPN to error

I have moved you yo the VPN section since it was the VPN that had the issue.

[foryth]

23 hours ago, Porthos said:

Why are you still on 2004 and not 21h1?

 

 

Cause I never updated to it, having done that now, now MWB vpn no longer works.  So thanks for that.

 

[Porthos]

1 minute ago, foryth said:

Cause I never updated to it, having done that now, now MWB vpn no longer works.  So thanks for that.

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Thanks

[foryth]

23 hours ago, Porthos said:

Why are you still on 2004 and not 21h1?

You might want to avoid Cumulative Update Previews. They are pre-release for next patch Tuesday.

 

Quoted merely because the site thought my post was spam but didnt say why.  So far this has been a less than stellar experience with the forum.

Well, its not 100% your fault.  Along with the 21H1 it installed KB5005101 again, so I uninstalled that and the VPN connects again.

So, the entire point of this thread is for the developers to know that the malwarebytes-vpn does not play well with update KB 5005101.

[Porthos]

Just now, foryth said:

So, the entire point of this thread is for the developers to know that the malwarebytes-vpn does not play well with update KB 5005101.

Developers need the log I asked for. Would have been nice in the broken state but get them now anyway.

[gatortail]

@foryth Thank you for sharing.  We are able to reproduce the issue with KB5005101.

[jamesjec53fl]

If this topic is still open I would like to inquire if there is any new information. I had the same problem after the KB5005101 update. After searching for the cause of the problem I also uninstalled KB5005101 and then was able to connect with the VPN without problem

[gatortail]

Yes, there is a known issue with KB5005101 breaking WireGuard.  It must be uninstalled if it's been applied until Microsoft provides a fix.

[Porthos]

7 minutes ago, gatortail said:

until Microsoft provides a fix.

Hope the patch Tuesday next week has a fix or there will be many more posts.

[gatortail]

Privacy v3.6 is pushing out now and includes a fix that hopefully addresses the KB5005101 issue noted.

[jamesjec53fl]

Received WIN Update KB5005565 this morning. Checked MBPrivacy and it work. This is before I installed the MB Privacy 3.6 update. Actually it is installing at the moment.

Now it is installed and MB Privacy appears to still be working.