# Ssl handshake failures

**URL:** <https://community.letsencrypt.org/t/ssl-handshake-failures/121767>\
**Category:** Help\
**Created:** [May 5, 2020, 11:49am UTC](https://community.letsencrypt.org/t/ssl-handshake-failures/121767 "2020-05-05T11:49:29Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![AhmedAliIbrahim](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/ahmedaliibrahim/32/18903_2.png) [@AhmedAliIbrahim](https://community.letsencrypt.org/u/AhmedAliIbrahim)\
**Post date:** [May 5, 2020, 11:49am UTC](https://community.letsencrypt.org/t/ssl-handshake-failures/121767/1 "2020-05-05T11:49:29Z")

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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=1trolley.com](https://crt.sh/?q=1trolley.com)), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: [1trolley.com](http://1trolley.com)

My web server is (include version): NGNIX

The operating system my web server runs on is (include version): Ubuntu 18.04 LTS

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

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

I’ve have installed let’s encrypt a few months ago and it was working fine, untill recently i started to see ssl handshake failures which i can fix by simply run certbot command, how can i overcome this issue?

Also i tried to put my site on cloudflare and it works fine for some day then suddenly i get 525 error

Also when i run certbot to reinstall new certificate i get

Domain: [1trolley.com](http://1trolley.com)  
Type: unauthorized  
Detail: Invalid response from  
[https://1trolley.com/.well-known/acme-challenge/lSr3QwTz2ILSX6ph0GGmkZreR1vVNZWi0Czmo\_Jokpo](https://1trolley.com/.well-known/acme-challenge/lSr3QwTz2ILSX6ph0GGmkZreR1vVNZWi0Czmo_Jokpo)  
[2606:4700:3033::6818:77ef]: "\n\n\nThe page you were looking for doesn’t  
exist (404)\n\<meta name=“viewport” content=“wi”

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

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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 5, 2020, 10:04pm UTC](https://community.letsencrypt.org/t/ssl-handshake-failures/121767/2 "2020-05-05T22:04:54Z")

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What Certbot command did you run?

What was its complete output?

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<div class="post-metadata">

**Author:** ![AhmedAliIbrahim](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/ahmedaliibrahim/32/18903_2.png) [@AhmedAliIbrahim](https://community.letsencrypt.org/u/AhmedAliIbrahim)\
**Post date:** [May 6, 2020, 2:27pm UTC](https://community.letsencrypt.org/t/ssl-handshake-failures/121767/3 "2020-05-06T14:27:37Z")

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i’ve used command sudo certbot

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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 5, 2020, 2:27pm UTC](https://community.letsencrypt.org/t/ssl-handshake-failures/121767/4 "2020-06-05T14:27:39Z")

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