SSL_ERROR_NO_CYPHER_OVERLAP when cloudflare enable

Website, Application, Performance Security
1

Hello, when I enable Cloudflare on the website I get this error SSL_ERROR_NO_CYPHER_OVERLAP
i have to disable it to make the website work? I have the clear cache and still nothing?

4

The error ‘SSL_ERROR_NO_CYPHER_OVERLAP’ is typically due to a misconfiguration in the SSL setting which leads to a mismatch in encryption algorithms between your server and Cloudflare. You can try the following steps:

Screenshot 2023-11-09 at 3.05.37 PM
Screenshot 2023-11-09 at 3.05.37 PM904×113 8.67 KB

  1. Review your SSL/TLS settings on Cloudflare
  2. Check the TLS version - you may need to lower it down to TLS 1.2
  3. Make sure your server cipher suite aligns with what Cloudflare is expecting.

For detailed instructions, you can refer to the Cloudflare community tip on resolving this issue: Fixing SSL_ERROR_NO_CYPHER_OVERLAP.

5

it work for about half an hour then when back down…

6

Can you share the name of the site with this issue?