UPDATE: I've tried Firefox, Explore, Chrome, again, and I'm still having no luck, whatsoever. This is really redundant. xD
You have to make sure that there are any proxies so please disable any proxy settings you might have enabled. Also do not run the browser in incognito/private browsing mode and have cookies enabled. Opening many tabs at a time will not work, so here how it works for me: I make sure proxies are disabled then log in to the tab. Wait for at least 5 minutes so your game can respond to it, it's better to be patient than rush it. :3 After that, launch Feralheart as administrator and log in. It must work if you followed all these steps and if it doesn't, then there's a problem with your computer or connection as AbyssalRadiance has mentioned.
This is another solution you can try, though I am not sure it has a link. Even if it doesn't we need to try everything we possibly can to help you!
Close all your programs and restart your computer, this will help your laptop have more memory (as in space to work). Then do the 1st process again.
I hope this works, it's everything I can possibly give you! <3
EDIT: I just realised that you must login with the same account as you did to the game tab, otherwise it won't work. I thought it might be a useful note in case anyone here has more than 1 account or logs in with different accounts.
so does that mean i have to change some of my characters proportions... I Have quite a few ferret characters that are stretched out and shortened for realism, does that count,,???
Are you asking if character sizes affect this situation? Because it actually doesn't, because it is still linked with the game and so there is nothing wrong with it.