Microsoft Defender VPN - Android Auto Communication error 21




Using Microsoft Defender for Endpoint VPN ( has caused connection issues with Android Auto, (See attached image) and users cannot get it to load. The only way it seems to get this to work is to turn off the VPN which we do not want to do as its an intuned corporate device which we want to have VPN always working on the device for security reasons. Has anyone got any solution?

Users receive the following error:

Communication error 21 - Being connected to a VPN may prevent Android Auto from starting. If you're using a VPN, turn it off and try reconnecting to Android Auto.



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