Synology DSM 6.2.4-25556 Update 2 My domain is: alphadata.si I ran this command: under Control Panel -> Security - > Certificates - > add a new certificate - > Get a certificate from Let's encrypt It produced this output: The Let's Encrypt server is busy. Please try again later. Tested all the …

Hi @EntityOne , and welcome to the LE community forum :slight_smile: [image] EntityOne: Synology DSM 6.2.4-25556 Update 2 Is that the latest version for your system? I'd start with some troubleshooting from the CLI. nslookup acme-v02.api.letsencrypt.org curl -Ii https://acme-v02.api.letsen…

Hi rg305. I've upgraded to the DSN 6.2.4-25556 Update 6, which is the last version of the DSM 6th generation OS. The result is the same. Let me know that the upgrade to the v7.0 (and its successor v7.1 ) is recommended but not required. Synology still develops the 6th generation of DSM. What You s…

Next step = basic troubleshooting: [image] rg305: I'd start with some troubleshooting from the CLI. nslookup acme-v02.api.letsencrypt.org curl -Ii https://acme-v02.api.letsencrypt.org/directory

Hi rg305! Here are the results: [image] and for the second: [image] Thank You, hope this will help You somehow.

That looks good. What is the FQDN used by the NAS?

Hi rg305! This one: [image] lp, tom

You won't be able to get a cert for such a "short name". Global CAs are required to issue certs to only FQDNs from valid domain names.

That field requires only one word, not the FQDN. Here is the online help: [image] lp , tom

hmm... OK. What shows in "Control Panel"/"Security"/"Certificate" ?

Hi rg305! This is shown under that : [image] lp tom

The Let's Encrypt server is busy. Please try again later

Help

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The Let's Encrypt server is busy. Please try again later

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