Just to give you a full detail on our setup here, we installed SEC_5.5 on a freshly installed WinServer 2012 then added few client computers. The computers are not part of the domain nor is SEC_5.5 installed on an Active Directory. Everything went well locally, we are able to install the antivirus manually on client computers and the computers are able to download updates, etc. We successfully installed Sophos Update Manager on one of our remote branch, however this Sophos Update Manager is not visible on the SEC_5.5. We already removed the Remote Management System on the Sophos Update Manager, but still the SUM is not visible on the SEC_5.5. we tried pinging the both and they were able to communicate (ping success), but still SUM is not visible.
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