# Timeout during connect (likely firewall problem)

**URL:** <https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/122162>\
**Category:** Help\
**Created:** [May 8, 2020, 4:32pm UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/122162 "2020-05-08T16:32:14Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![OscarProtOn](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/oscarproton/32/39512_2.png) [@OscarProtOn](https://community.letsencrypt.org/u/OscarProtOn)\
**Post date:** [May 8, 2020, 4:32pm UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/122162/1 "2020-05-08T16:32:14Z")

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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. [https://crt.sh/?q=example.com](https://crt.sh/?q=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:  
[altamira.prot-on.com](http://altamira.prot-on.com)

I ran this command:  
certbot certonly --manual -d [altamira.prot-on.com](http://altamira.prot-on.com)

It produced this output:  
Saving debug log to /var/log/letsencrypt/letsencrypt.log  
Plugins selected: Authenticator manual, Installer None  
Obtaining a new certificate  
Performing the following challenges:  
http-01 challenge for [altamira.prot-on.com](http://altamira.prot-on.com)

* * *

NOTE: The IP of this machine will be publicly logged as having requested this  
certificate. If you’re running certbot in manual mode on a machine that is not  
your server, please ensure you’re okay with that.

Are you OK with your IP being logged?

* * *

(Y)es/(N)o: Y

* * *

Create a file containing just this data:

xanfR0jX6bI6-MFYe7nTwfMbSjy561SJWq0yA6JMwfY.A4cighAvPn0QslYGL5-\_z1TXNN8TuJ-6D6PBYSoR2EI

And make it available on your web server at this URL:

[http://altamira.prot-on.com/.well-known/acme-challenge/xanfR0jX6bI6-MFYe7nTwfMbSjy561SJWq0yA6JMwfY](http://altamira.prot-on.com/.well-known/acme-challenge/xanfR0jX6bI6-MFYe7nTwfMbSjy561SJWq0yA6JMwfY)

* * *

Press Enter to Continue  
Waiting for verification…  
Cleaning up challenges  
Failed authorization procedure. [altamira.prot-on.com](http://altamira.prot-on.com) (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching [http://altamira.prot-on.com/.well-known/acme-challenge/xanfR0jX6bI6-MFYe7nTwfMbSjy561SJWq0yA6JMwfY:](http://altamira.prot-on.com/.well-known/acme-challenge/xanfR0jX6bI6-MFYe7nTwfMbSjy561SJWq0yA6JMwfY:) Timeout during connect (likely firewall problem)

IMPORTANT NOTES:

- The following errors were reported by the server:

My web server is (include version):  
Apache/2.4.29

The operating system my web server runs on is (include version):  
Ubuntu 18.0.4

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):  
No

The version of my client is (e.g. output of `certbot --version` or `certbot-auto --version` if you’re using Certbot):  
0.31.0

I’ve checked from a browser (out of any VPN):  
[http://altamira.prot-on.com/.well-known/acme-challenge/xanfR0jX6bI6-MFYe7nTwfMbSjy561SJWq0yA6JMwfY](http://altamira.prot-on.com/.well-known/acme-challenge/xanfR0jX6bI6-MFYe7nTwfMbSjy561SJWq0yA6JMwfY)  
it returns the given value.

The server failed to auto renew due to firewall problems after solving the issue with firewall the same error persists. Then I deleted the certificate to create a new one and I removed 443 VirtualHost in apache, but I get same error, with both --apache and --manual.

Thanks in advance for your help!  
Oscar

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<div class="post-metadata">

**Author:** ![mnordhoff](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/mnordhoff/32/22583_2.png) [@mnordhoff](https://community.letsencrypt.org/u/mnordhoff)\
**Post date:** [May 8, 2020, 4:55pm UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/122162/2 "2020-05-08T16:55:48Z")

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> [@OscarProtOn](#):
>
> I’ve checked from a browser (out of any VPN):  
> [Acceso](http://altamira.prot-on.com/.well-known/acme-challenge/xanfR0jX6bI6-MFYe7nTwfMbSjy561SJWq0yA6JMwfY)  
> it returns the given value.

It times out for me, too.

Did you try from inside your network or from another network?

Are you sure the IP address (52.236.154.94) is correct, and there isn't a firewall blocking all Internet traffic, or traffic from other ISPs, or traffic from other countries, or something?

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<div class="post-metadata">

**Author:** ![JuergenAuer](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/juergenauer/32/26491_2.png) [@JuergenAuer](https://community.letsencrypt.org/u/JuergenAuer)\
**Post date:** [May 8, 2020, 4:57pm UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/122162/3 "2020-05-08T16:57:36Z")

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> [@mnordhoff](#):
>
> It times out for me, too.

Oh, curious. I see the content.

> xanfR0jX6bI6-MFYe7nTwfMbSjy561SJWq0yA6JMwfY.A4cighAvPn0QslYGL5-\_z1TXNN8TuJ-6D6PBYSoR2EI

Looks like a regional blocking (I'm from Berlin).

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<div class="post-metadata">

**Author:** ![OscarProtOn](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/oscarproton/32/39512_2.png) [@OscarProtOn](https://community.letsencrypt.org/u/OscarProtOn)\
**Post date:** [May 11, 2020, 11:16am UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/122162/4 "2020-05-11T11:16:52Z")

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Hi,  
You are right!! We didn’t realize about a regional constraint.  
Now it is working, and I got the certificate.

Thanks for your help,  
Oscar

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\
**Post date:** [June 10, 2020, 11:16am UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/122162/5 "2020-06-10T11:16:55Z")

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