Let's Encrypt fails to renew / verify certificate in UCS 4.4-2 errata-291: traceback error in logfile

Hi,

same here (no certificate renewal last night):

Refreshing certificate for following domains:
xxxx.de xxxx.ddns.net xxxx.myfritz.net
Parsing account key...
Parsing CSR...
Found domains: xxxx.de, xxxx.ddns.net, xxxx.myfritz.net
Getting directory...
Directory found!
Registering account...
Already registered!
Creating new order...
Order created!
Verifying xxxx.ddns.net...
xxxx.ddns.net verified!
Verifying xxxx.myfritz.net...
xxxx.myfritz.net verified!
Verifying xxxx.de...
remote.xxxx.de verified!
Signing certificate...
Traceback (most recent call last):
  File "/usr/share/univention-letsencrypt/acme_tiny.py", line 197, in <module>
    main(sys.argv[1:])
  File "/usr/share/univention-letsencrypt/acme_tiny.py", line 193, in main
    signed_crt = get_crt(args.account_key, args.csr, args.acme_dir, log=LOGGER, CA=args.ca, disable_check=args.disable_check, directory_url=args.directory_url, contact=args.contact)
  File "/usr/share/univention-letsencrypt/acme_tiny.py", line 155, in get_crt
    _send_signed_request(order['finalize'], {"csr": _b64(csr_der)}, "Error finalizing order")
  File "/usr/share/univention-letsencrypt/acme_tiny.py", line 51, in _send_signed_request
    new_nonce = _do_request(directory['newNonce'])[2]['Replay-Nonce']
  File "/usr/share/univention-letsencrypt/acme_tiny.py", line 45, in _do_request
    raise ValueError("{0}:\nUrl: {1}\nData: {2}\nResponse Code: {3}\nResponse: {4}".format(err_msg, url, data, code, resp_data))
ValueError: Error:
Url: https://acme-v02.api.letsencrypt.org/acme/new-nonce
Data: None
Response Code: None
Response: <urlopen error [Errno 104] Connection reset by peer>
Setting letsencrypt/status
Module: kopano-cfg
run-parts: executing /etc/univention/letsencrypt/post-refresh.d//apache2
run-parts: executing /etc/univention/letsencrypt/post-refresh.d//dovecot
run-parts: executing /etc/univention/letsencrypt/post-refresh.d//postfix

I guess also this posting “LetsEncrypt certificate error” is related.

would be great if someone can have a look.

BR,
Thomas