NAT64 recently started to give errors.
ERROR
NAT64 translation failures might be preventing remote clients from accessing IPv4-only servers in the corporate network.
CAUSES
1. NAT64 is not enabled on the server.
2. The NAT64 server cannot be reached.
3. NAT64 translation has failed.
RESOLUTION
1. Ensure that the NAT64 server can be reached on the corporate network.
2. Ensure that NAT64 is enabled on the server.
3. If you have native IPv6 connectivity, ensure that the NAT64/DNS64 prefix is configured in the DirectAccess settings.
4. In the Remote Access Server Setup Wizard, ensure that the default NRPT entry points to the internal address of the NAT64/DNS64 server.
I'm not sure what the cause is or how to troubleshoot it. Any ideas?
Mike Pietrorazio