diff --git a/readme.md b/readme.md
index 861f2fe..13bc756 100644
--- a/readme.md
+++ b/readme.md
@@ -18,4 +18,6 @@ For use with Pretendo run with the option `--scripts ./pretendo_addon.py`. This
 
 ## Known issues
 
-- WiiU eShop does not work (crashes on boot)
\ No newline at end of file
+- WiiU eShop does not work (crashes on boot)
+- Occasionally, a site will not work and cause a certificate warning in the mitmproxy logs. If this happens, go into the client-certificate directory of this repository and create a symbolic link to ctr-common-1.pem if you are using a 3DS or WIIU_COMMON_CERT_1.pem if you are using a Wii U named <nintendo domain that it cannot connect to>.pem and try again.
+- It is not possible to use SSLv3 or SSLv2 using the latest version of mitmproxy with OpenSSL. This might cause problems with certain servers. There is currently no workaround for this because OpenSSL 1.1.x has completely removed support for old versions of SSL.