The reason you're locked out is because you don't own a security token, and seeing as you said you refuse to get one you'll simply have to deal with it. The Token is used to prove it's you no matter the location, no matter the machine you log in from only you will have token access.
Otherwise you'll continue to be locked out if there's multiple logins from other IPs and machines without token usage. You're not forced to use a token but if you want to avoid this issue, simply just get one. There's 2 people here excluding myself who logs into XIV, we never get locked out and we don't use a token, so:
If this is all on your same account that is exactly why you need a token.
