I have observed some disadvantages as we have experienced one particular problem. We were facing an issue of synchronization of the endpoint with our firewall with help on a cloud for heartbeat syncing. However, it was not syncing as per our requirement. The user has to connect our firewall with the help of VPN. We were supposed to assume a solution on a cloud, which has good synchronization on a cloud with Sophos Central. It will sync with our firewall as well with the help of Sophos Central. Endpoint and firewall synchronization is not as smooth as we are expecting from Sophos Network Access Control. We have to connect with VPN. We are expecting that if we have already installed an endpoint on our system and it is connected to the internet, then it must be synchronized on a cloud with Sophos Central. Through Sophos Central, it must connect with our firewall. If the endpoint is configured on Sophos Central and the firewall is also configured in Sophos Central, then there should be no need to connect to VPN.