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DNS issue after uninstalling Sophos Endpoint Agent

We have noticed that when we have a computer that has a failed Sophos Central issue, for example, Missing Sophos AutoUpdate Service, after we have uninstalled Sophos and rebooted, the computer will no longer respond to DNS type requests!

For example:
Missing Sophos AutoUpdate Service displayed in Sophos Central
Attempting to reinstall using both the fat and thin version of the installer fails.
Ping to domain controller responds OK
Uninstall Sophos
Reboot
Ping domain controller via DNS name fails
Ping domain controller via IP address works
Other things such as RSOP.MSC fails as they computer cannot see the domain.

Windows Firewall is turned off

The fix we have found is to reimage the workstation.

Sophos has been working (as much as it ever does) on this machine until recently, this issue has only occurred over the last few days.

Anyone else have this issue?



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  • FormerMember
    0 FormerMember

    Hi Mark,

     

    Please run the following command netsh winsock reset and reboot the server also clear up DNS cache ipconfig /flushdns

     

    Let me know if this helps

     

    Amanjot Singh

Reply
  • FormerMember
    0 FormerMember

    Hi Mark,

     

    Please run the following command netsh winsock reset and reboot the server also clear up DNS cache ipconfig /flushdns

     

    Let me know if this helps

     

    Amanjot Singh

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