Another scenario is related to networking when users try to connect to a single host computer but they receive the same error message. The problem can be resolved in several different ways so make sure you follow the instructions in the methods below.
What Causes the “The System Detected a Possible Attempt to Compromise Security” Error Message?
Make sure you check out the list of possible causes in order to properly determine just what caused the problem which determines which steps to follow in order to get rid of the problem:
Solution 1: Uninstall the KB3167679 Update to Your Domain Controller
When the KB3167679 update was released for Windows Server, Microsoft announced that the update may cause problems regarding password verification on computers connected to the same domain controller. The easiest way to resolve this is to simply uninstall this update from your DC by following the steps below:
Solution 2: Open TCP and UDP Ports 88 in Windows Firewall
These ports absolutely need to be opened on the server or the DC in order for the whole network to function properly. This should be done on the default and active firewall (probably Windows Firewall) so make sure you follow the steps below in order to allow these ports through and resolve the problem.
Solution 3: Use IPv4 on Your Network
IPv6 brings many problems along the way and it has become a cause for many different problems regarding network connectivity. You can try to resolve the problem presented in this article simply by switching your network to use IPv4 instead of IPv6.
Solution 4: Obtain DNS Addresses Automatically
This should be changed on client computers. If the addresses have been wrongly set to wrong ones in the past when the server still used them, you should revisit the same setting and make sure the DNS addresses are obtained automatically.
Solution 5: Update the Networking Driver on Client PC
This method has worked for many users. Faulty drivers are a cause for many issues and updating them is definitely something you should try out.
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