# Timeout during connect (likely firewall problem) **URL:** \ **Category:** Help\ **Created:** [January 28, 2020, 11:17pm UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/111756 "2020-01-28T23:17:18Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![aol](https://avatars.discourse-cdn.com/v4/letter/a/46a35a/32.png) [@aol](https://community.letsencrypt.org/u/aol)\ **Post date:** [January 28, 2020, 11:17pm UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/111756/1 "2020-01-28T23:17:18Z")
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. **I ran this command:** certbot renew --dry-run **It produced this output:** Saving debug log to /var/log/letsencrypt/letsencrypt.log * * * Processing /etc/letsencrypt/renewal/e3.dtadata.com.conf * * * Cert is due for renewal, auto-renewing… Plugins selected: Authenticator apache, Installer apache Starting new HTTPS connection (1): [acme-staging-v02.api.letsencrypt.org](http://acme-staging-v02.api.letsencrypt.org) Renewing an existing certificate Performing the following challenges: http-01 challenge for [e3.dtadata.com](http://e3.dtadata.com) Waiting for verification… Challenge failed for domain [e3.dtadata.com](http://e3.dtadata.com) http-01 challenge for [e3.dtadata.com](http://e3.dtadata.com) Cleaning up challenges Attempting to renew cert ([e3.dtadata.com](http://e3.dtadata.com)) from /etc/letsencrypt/renewal/e3.dtadata.com.conf produced an unexpected error: Some challenges have failed… Skipping. All renewal attempts failed. The following certs could not be renewed: /etc/letsencrypt/live/e3.dtadata.com/fullchain.pem (failure) * * * \*\* DRY RUN: simulating ‘certbot renew’ close to cert expiry \*\* (The test certificates below have not been saved.) All renewal attempts failed. The following certs could not be renewed: /etc/letsencrypt/live/e3.dtadata.com/fullchain.pem (failure) \*\* DRY RUN: simulating ‘certbot renew’ close to cert expiry \*\* (The test certificates above have not been saved.) * * * 1 renew failure(s), 0 parse failure(s) IMPORTANT NOTES: - The following errors were reported by the server: **My web server is (include version):** Apache 2.4.6 The operating system my web server runs on is (include version): CentOS 7 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 **The version of my client is (e.g. output of `certbot --version` or `certbot-auto --version` if you’re using Certbot):** certbot 0.38.0 ---
**Author:** ![LuB](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/lub/32/35871_2.png) [@LuB](https://community.letsencrypt.org/u/LuB)\ **Post date:** [January 29, 2020, 2:09am UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/111756/2 "2020-01-29T02:09:32Z")
Interesting... Can you please run this command > certbot certifcates And post the results Cheers ---
**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:** [January 29, 2020, 5:58am UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/111756/3 "2020-01-29T05:58:25Z")
Trying to connect to [http://e3.dtadata.com/](http://e3.dtadata.com/) times out for me too. Is there a firewall blocking port 80? Can you connect to it? From other ISPs? I can’t even ping your IP, but I can access other IPs on the same /24, so it seems like it’s probably a firewall issue. ---
**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\ **Post date:** [February 28, 2020, 5:58am UTC](https://community.letsencrypt.org/t/timeout-during-connect-likely-firewall-problem/111756/4 "2020-02-28T05:58:32Z")
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