Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

Sophos 21 Home Lets Encrypt Secondary Validation Fetch Timeout

Certificate request fails with secondary validation time out. I can see in the web server protection log viewer that the well known url is being requested with the unique value. I also briefly see that the temporary waf rule is created. Only thing to note is that the firewall is behind a router (DNAT in place and as mentioned i see the url being hit in the logs and the cert makes it to secondary validation unlike when there was no DNAT) and this is a bridged setup so no dedicated wan/lan.

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