Type: Unauthorized error

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: fusenet.marekgroup.com

I ran this command: certbot certonly --webroot

It produced this output:

Saving debug log to C:\Certbot\log\letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Please enter in your domain name(s) (comma and/or space separated) (Enter 'c'
to cancel): fusenet.marekgroup.com
Requesting a certificate for fusenet.marekgroup.com
Performing the following challenges:
http-01 challenge for fusenet.marekgroup.com
Input the webroot for fusenet.marekgroup.com: (Enter 'c' to cancel): c:\inetpub
Waiting for verification...
←[31mChallenge failed for domain fusenet.marekgroup.com←[0m
http-01 challenge for fusenet.marekgroup.com
Cleaning up challenges
←[31mSome challenges have failed.←[0m
←[0m - The following errors were reported by the server:

Domain: fusenet.marekgroup.com
Type: unauthorized
Detail: Invalid response from

To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address.

My web server is (include version): iis

The operating system my web server runs on is (include version): Server 2008 R2 (Yes, I know it's EOL, Yes I know it has problems, Yes, I would have upgraded years ago if I could have, Yes, we are going to retire it ASAP. If you are just going to say upgrade your stupid server moron, please, I beg you from the bottom of my heart, just don't... that's completely unhelpful right now. Thank you)

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know): Yes

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): 1.15 (it's the only one that actually worked, if I install later versions, I can't run any certbot commands, it can't find them)

I am just trying to get this server to limp through until we can replace it. I don't want to spend any extra $$$ if we don't have to, hence, here I am with Let's Encrypt. I can see it put a file in the acme-challenge folder, but then it just disappears and I get the 'Invalid Response' error. The DNS seems to be all resolving ok from what I can tell. The site works fine. But I do feel I must be missing something obvious here. Any help (besides "Upgrade Your server, moron") is greatly appreciated.

Is that the correct webroot?
Maybe it needs to be enclosed within quotes...?
Let's test that by placing a test text file in that location and then accessing it via the Internet.


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