When you sign into Spore.com, you will either see your email address at the top, or, you will see MySpore Page, with your Spore screen name at the top. Which do you see?
If you see your email address, it means there is no Spore screen name (persona) associated with that email address. Use the "Register" option in-game to create one. It will ask for three things: your email, password, and a new screen name. The first two should be the same as your EA/Origin account (which you used to login to Spore.com), and the screen name will become your public screen name (username) that appears on your creations and on Spore.com.
If you've already done the above, and therefore see MySpore page when logging into Spore.com... just to confirm, the message you receive in-game is "There was an error connecting to the Spore servers. Your computer might be offline or your internet connection may be having problems. Check your connection or visit Spore.com for additional assistance or server status."?
If so, first try deleting the login.prop file located at C:\Users\your_name\AppData\Roaming\Spore\Preferences - this will reset Spore's online configuration and can resolve some login issues. You won't lose any other data.
The game does not support all special characters in passwords. If your password contains symbols or uncommon characters (like accented letters) try changing your password to remove these.
If you have extra/non-standard anti-virus, firewall, parental controls, or anything else that could block/affect internet activity, try disabling these.
