Further to EM's post, keep in mind that you will have a separate IP when connecting over your mobile data connection, so make sure to check that one too.
So far we have not seen any of the login error emails that cannot be explained by our own devices logging in witht he wrong password. We're more than happy to help people check their IP, however.
Wetbiker, I've edited out that IP from your post. It would appear that you are on a dyanmic IP and the one you posted is from the range of IPs your internet provider usually provides you. So nothing to worry about there.