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the classin token not found issue

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Hello @newtrix and :welcome:

The computer in question must have unimpeded Internet access with all Malwarebytes servers and for the Malwarebytes product licensing activation procedure to succeed and sustain, this condition, on that computer, must be corrected: “Unless the hosts entry is blocked with some other security software, if you run a Threat scan with Malwarebytes it should list our license server as an item that needs to be fixed. Then if you allow the scan to fix / remove what it finds it should automatically fix the hosts file for you. -@AdvancedSetup”

However, if the above Malwarebytes Threat scan fails to fix/remove the errant HOSTS file entries, please proceed as follows:

1) (Preferred) Reset the Windows HOSTS file to its default by following Microsoft's support document for the version of Windows installed using: How to reset the Hosts file back to the default.


2) With a text editor or the Windows Notepad utility, please edit the HOSTS file at: 

   %WinDir%\System32\drivers\etc\HOSTS     (typically C:\WINDOWS\System32\drivers\etc\HOSTS)

3) Please permanently delete the following present entry lines in the above HOSTS file followed by a save: keystone.mwbsys.com                   telemetry.malwarebytes.com serius.mwbsys.com

4) Restart Windows and proceed to activate the Malwarebytes 4 for Windows (MB4) product license.

5) Please reply to this topic and let the forum know if the Malwarebytes license activation process succeeded. 

Thank you. 

Reference: Firewall Rules for Malwarebytes on Windows devices

Edited by 1PW
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