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When turning on Lets Encrypt I receive the following error on only one of my UTMS.
The previous attempt to enable Let’s Encrypt failed: Registration with the Let’s Encrypt server failed. Please try again later or see the Let’s Encrypt website for possible causes.
Of course the link just takes me to the Lets Encrypt home page instead of anything actually helpful. What processes does the UTM take to register for Let's Encrypt? I need some basic trouble shooting ideas as I see absolutely nothing in the logs.
I think it could be helpful to post the relevant part of the log, maybe someone else can see an error.
Btw did you see https://community.sophos.com/products/unified-threat-management/f/web-server-security/115242/9-605-1-let-s-encrypt-renewals-fail for example?
Let's Encrypt has disabled ACME1 support for new registrations. If you look at your Let's Encrypt log you might see something like this:
According to https://community.sophos.com/products/unified-threat-management/b/blog/posts/utm-up2date-9-700-released this should work again with UTM 9.7 which is in rollout since end of September but probably not yet availabe via Up2Date. At least not for my UTM.