Heartbeat Authentication failed to login errors

Question

Hi community, 
 In the network computers secured via Sophos Endpoint Protection: Intercept X Advanced and Sophos Firewall 125 with the setting Central Sync enabled . There is no AD server integration being made by choice. For this errors clientless user definitions made, but no luck. Error logs; 
 Setting:

Is there any option for make this error logs disappear. There was no support taken still. Thanks all.

FormerMember · Answer

Hi Can carmack , 
 Thank you for reaching out to Sophos Community. 
 You need to integrate the active directory with the Sophos firewall so that it can validate the user identity which comes with client heartbeat. 
 Click here to know more information on "How to integrate Active Directory server".