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When you attempt to create a VPN from an iPhone to Astaro Security Gateway (ASG) using the Cisco VPN client, an error occurs stating that the iPhone 'Could Not Verify Server Certificate'.
Could Not Verify Server Certificate'
Known to apply to the following Sophos product(s) and version(s)
Sophos UTM Astaro Security Gateway / Sophos UTM
Operating systems V7, V8, V9
When first set up, the hostname of the ASG was not a fully qalified domain name, or the FQDN has since changed.
To confirm this,
The VPN ID should be an FQDN, if it is not, then you must create a new certificate as described below.
Follow these steps to create a new server certificate that the iPhone can verify.
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