Server: Windows 2016
Web: On_Prem Exchange/IIS
My domain is: autodiscover.dmctools.com and 6 other subdomains.
I originally had a scheduled task to renew, but it started failing and I didn’t realize until it was too late. The autorenew command was wacs.exe --renew --baseuri “https://acme-v02.api.letsencrypt.org/”
Task output: Task Scheduler successfully completed task “\win-acme renew (acme-v02.api.letsencrypt.org)” , instance “{78391ef9-7458-432a-b6a9-01756b0778a4}” , action “D:\LetsEncrypt\wacs.exe” with return code 2147516570.
When attempting to renew manually, I received the errors below.
Unable to refresh cached order: JWS has an invalid anti-replay nonce: “0002nSVfeD9rItOwtRbZWKWAJBVo9Wd_8tRTyhGCGjh7xmQ”
Cached authorization result for autodiscover.dmctools.com: valid
Cached authorization result for exchange.dmctools.com: valid
Cached authorization result for mail.dmctools.com: valid
Cached authorization result for mobile.dmctools.com: valid
Cached authorization result for owa.dmctools.com: valid
Authorize identifier webmail.dmctools.com
Authorizing webmail.dmctools.com using http-01 validation (FileSystem)
Answer should now be browsable at http://webmail.dmctools.com/.well-known/acme-challenge/k367DSz4nlkg8z_BVPaL9Ued_BVq_cHGzaH2KEVTbiw
Preliminary validation failed, the server answered ‘(null)’ instead of ‘k367DSz4nlkg8z_BVPaL9Ued_BVq_cHGzaH2KEVTbiw.7iN1DWaYDPmQjyNvQ1ZwDZDQf8yaRRh8UGOO3AejmeE’. The ACME server might have a different perspective
{
“type”: “urn:ietf:params:acme:error:connection”,
“detail”: “Fetching http://webmail.dmctools.com/.well-known/acme-challenge/k367DSz4nlkg8z_BVPaL9Ued_BVq_cHGzaH2KEVTbiw: Timeout during connect (likely firewall problem)”,
“status”: 400
}
Authorization result: invalid
I was using wacs.exe V2.1.7.807
Also tried using v2.1.8.835
Same issue, it will not renew, always get an error code with timeout. Firewall is off. Although that page is not browsable at all. I have never had to go to that page before so I cannot say whether it worked or not in the past.
Any help would be awesome! I have people breathing down my neck right now.