Version 2.2.3 (Latest available: Could not connect)

Hiya, I've been having difficulties with SEF Advance's about page connecting to the server to let me know if updates are available.

I've just updated to the latest version and I am still getting this error:
Version  2.2.3    (Latest available: Could not connect)

Does anyone have any ideas as to why this is occuring?

Thanks Alex

Your server does not allow external connections. Don't worry about it, SEF Advance will work, just check for new version manually on this site if you want to upgrade.

Latest version is 2.2.4, if you just upgraded then you haven't done that correctly.