If you are saying that you used your AG login and such off of the browser version on AG, I'm fairly certain they are not compatible with one another. In other words any account and character only works on AG, and other accounts made off-site are not compatible with AG.
You could always go to their website ans inquire further there if you feel like it.
Devoidless how can i find my spiral knight user name and password? I've tryed to loggin at the spiral knights page but i cant find my username or pass. Is it anyway you can help me?
Been wondering this issue, And there is no current answer. And since java is soon blocking the AG start up to spiral knights, We may need to start a new account on Spiral knights all over again. And honestly, If this isn't sorted, I'm going to lose it.