I use WICS on Exchange Server 2019. It had been working fine for months, but all of the sudden it stopped working and was giving me this error:
"detail": "x.x.x.x: Fetching http://<fdqn>/.well-known/acme-challenge/rYF6kVvSUrF76CfFGPdDl4W_HilIX7fHlGsey81v2yc: Timeout during connect (likely firewall problem)",
But now I get:
Failed to create order: Error creating new order :: too many failed authorizations recently: see Failed Validation Limit - Let's Encrypt
When reading the Failed Validation Limit - Let's Encrypt it says " Overrides are not available for the Failed Validation limit."
I am not sure what that means. Will it let me retry authorization at some point or not?
Any advice, info on this is appreciated. - Thanks
Hi @Jkocan, and welcome to the LE community forum
Yes, per the rate limits, you have exceeded the per hour failed requests.
See: Rate Limits - Let's Encrypt
You should use the testing environment for all such testing.
All issuance requests are subject to a Failed Validation limit of 5 failures per account, per hostname, per hour.
From the page you linked - wait an hour
You can troubleshoot the real problem:
Ah... Thank you. Hopefully I will be able to figure out the firewall problem. It was working great for months and all of the sudden stopped.
Often it is because someone blocked port 80 since the last time you got a cert.
Like many ISP are doing these days - I still can't grasp any benefit of them doing that.
For anyone that is interested. For some reason HTTP must have been blocked at the firewall level. I figured it out by going to the validation URL that was in the request. Also updated to the latest WACS.
So future note to self: make sure http is enabled to the server, not just https.
Thanks for all of your help guys. I really appreciate it.
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