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"Wanna" ransomware outbreak. Please see this Sophos article sophos.com/kb/126733 for advice on how to protect your organization. Immediate action recommended.
The following error message can be seen in the Network Communications Report when a computer that previously reported successfully to Enterprise Console, can no longer do so:
Failed to communicate with the server.
First seen in Sophos Anti-Virus for Windows 2000+
This is a general communication error, and usually happens where communications worked for some time before failing.
Note: This may be a transient error that requires no action.
Possible causes include:
Look for the following:
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