Likely firewall problem On BigBlueButton Setup


We want to use our servers BigBlueButton using Let’s Encrypt Certificates (

We get an error on Let’s Encrypt. We gave permissions on 80 And 443 Ports. But Our server was accessible only from Turkey IP addresses. I send screenshot. How to fix it?

Timeout during connect (likely firewall problem)

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. Additionally, please check that

your computer has a publicly routable IP address and that no

firewalls are preventing the server from communicating with the

client. If you’re using the webroot plugin, you should also verify

that you are serving files from the webroot path you provided.

1 Like

Hi @turexx


is your answer. You have to change that if you want to use http validation.


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