Sophos Central Endpoint and SEC: Computers fail/hang on boot after the Microsoft Windows April 9, 2019 update. Please follow knowledge base article 133945

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DEP-devices don't connect after renewing the ssl certificate

Hello, after renewing the ssl certificate in the UTM and in the smc console, the DEP-devices don't connect any more with the Server/MDM.

Is it possible, that we have to Change the DEP-Tokens between apple busines Portal and smc? Or what could be the problem?